Things to consider - iphone does not support LDAC and if your Android does not have LDAC, then it will use AAC because this model does not support APTX codecs. But overall it is a durable and quality product without any extra fuss. Working great!
2.4GHZ WIRELESS THROUGH THE INCLUDED USB-A NANO RECEIVER
UGREEN MU003 90371 2.4GHz Silent Mouse, 2400 DPI, Black
Overview
UGREEN 90371 is a black compact symmetrical with textured sides optical mouse for office work, browsing, study and everyday computing. It provides 2.4GHz wireless through the included USB-A nano receiver, 4 verified DPI levels and reduced-noise controls. This guide explains fit, setup, power, compatibility and exact limitations without promising medical or competitive-gaming outcomes.
SKU 90371MU003Ambidextrous / either hand2400 DPI max
Exact black MU003 mouse for SKU 90371; the USB-A receiver is stored underneath when not in use.
Key features
Hand orientation
Ambidextrous / either hand.
Shape
Compact symmetrical with textured sides.
Grip guidance
compact fingertip, claw or small-palm use depending on hand size.
Comfort boundary
Ergonomic describes the physical contour, not a medical treatment. Hand size, posture, desk height and grip preference determine comfort; take regular movement breaks.
Three common grip positions are illustrated, but the best fit depends on the user hand and working posture.
Connection modes and device switching
Connection: 2.4GHz wireless through the included USB-A nano receiver.
Host handling: one receiver-based host connection. No Bluetooth and no multi-device switching.
Range: Wireless range is environment-dependent; no exact range figure is used in this draft. Keep the receiver away from heavily shielded ports, crowded 2.4GHz equipment and large metal obstacles.
USB-C note: the supplied receiver is USB-A. A physical USB-C fit requires a compatible data-capable adapter or hub; a charging-only adapter will not work.
Controls and DPI: what each setting changes
Controls: Left click, right click, scroll/middle click; underside DPI selector and power switch. None.
800 DPI
Measured pointer movement for precise tasks.
1200 DPI
Balanced everyday navigation; choose by feel and task.
1600 DPI
Balanced everyday navigation; choose by feel and task.
2400 DPI
Fast pointer travel across a large or high-resolution desktop.
DPI is pointer sensitivity. It does not prove polling rate, latency, gaming class, display sharpness or tracking on every surface.
Exact MU003 sensitivity choices are 800, 1200, 1600 and 2400 DPI.
Reduced-noise controls
What is quieter
The main clicking design is intended to reduce repetitive click noise in shared work, libraries, meetings and late-night use.
What remains audible
Scroll-wheel steps, mode and DPI switches, side buttons, desk contact and physical movement may still make sound.
No percentage promise
Exact model media is not treated as a laboratory sound certificate. “Silent” means reduced-noise, not zero decibels.
User-friendly placement
Use a clean mouse pad and light clicking pressure; a rough desk can create more movement noise than the buttons.
The exact gallery identifies a soft silicone roller and honeycomb-textured side, so legacy metal-scroll wording is not used.
Battery, sleep and power management
Power: 1 × AA battery, not included. This is a replaceable-battery mouse, not a rechargeable mouse.
Battery estimate: Up to 18 months under the current exact UGREEN India product information. Sleep: Automatic sleep helps reduce power use.
Battery care: insert with correct polarity; use one fresh, undamaged battery of the required type; do not mix chemistries; remove it for long storage; recycle depleted batteries through an appropriate collection route.
Setup and usability guidance
Open the compartment: locate the receiver and battery bay without forcing the cover.
Install power: insert 1 × aa battery, not included with the printed polarity.
Select the connection: insert the supplied USB-A receiver into a compatible host or data-capable adapter.
Switch on: use the physical power switch and wait for the host to recognise the pointer.
Set sensitivity: press the DPI control and test each verified level on your normal screen.
Check buttons: confirm scrolling and any side-button behaviour in the actual operating system and application.
The underside identifies the on/off switch, DPI selector, optical sensor, receiver slot and AA battery bay.
Use scenarios
Office and home work
Navigate documents, spreadsheets, presentations, web pages and ordinary desktop applications.
Study and shared spaces
Reduced-noise clicks suit libraries, classrooms, meetings and rooms where repetitive clicking can distract.
Laptop travel
The cable-free design and nano receiver simplify portable setups; store the receiver securely and switch the mouse off before packing.
Multi-screen work
Higher DPI can move the pointer faster across a large desktop; choose a lower setting when fine placement matters.
Tablet use
A tablet must support USB host/OTG and a compatible data adapter for the USB-A receiver.
Casual games
Adjustable DPI may suit casual play, but no competitive polling rate, macro software or latency number is verified.
Compact receiver-based pointer control for an everyday desk or laptop workspace.
Compatible devices and systems
Verified system guidance: Windows, macOS, ChromeOS, Linux and compatible USB-host devices; advanced functions depend on the host.
Windows PCs
Primary pointer, click and wheel functions should work after standard plug-and-play or Bluetooth pairing. Shortcut behaviour is application-dependent.
Mac computers
Primary functions are supported on compatible systems; side-button and mode-button behaviour can differ from Windows.
Chromebooks and Linux
Basic HID mouse functions are expected on compatible hosts; advanced remapping is not promised.
Phones and tablets
A listed mobile OS does not guarantee every app supports a pointer. USB receiver use also requires host/OTG support and a data adapter.
Optical tracking and surface guidance
The optical sensor is intended for common, clean, flat work surfaces such as a mouse pad, paper, finished wood and suitable fabric.
Use a mouse pad when the desk is transparent, mirrored, highly reflective, glossy, uneven or heavily patterned. Dust, hair, moisture and low battery can affect tracking.
No “works on every surface” promise is made. Clear glass and mirrors are specifically not guaranteed.
The exact gallery illustrates wood, paper and cloth; a mouse pad remains the safer choice for glossy, glass or inconsistent surfaces.
What this product does
Provides standard optical pointer, click and scroll input to a compatible host.
Connects by 2.4ghz wireless through the included usb-a nano receiver.
Uses a reduced-noise control design for everyday productivity.
Runs from 1 × aa battery, not included with automatic sleep helps reduce power use.
What this product does not do
It is not rechargeable and has no charging port or built-in battery.
It does not transfer files, add storage, improve display resolution or replace a Bluetooth adapter for other accessories.
It does not guarantee medical relief, injury prevention or correct posture.
It does not provide verified competitive-gaming polling rate, programmable macros or zero-latency performance.
It does not guarantee tracking on glass, mirrors or every material.
What to do
Choose the correct SKU
Match the colour, shape, connection method and DPI list to SKU 90371; related UGREEN mice are not interchangeable.
Check hand fit
Confirm ambidextrous / either hand placement and the preferred grip before long sessions. Change posture and take movement breaks.
Protect the receiver
Use the storage position where verified, or a secure accessory pouch. A lost receiver may not be replaceable by a generic dongle.
Keep firmware expectations simple
Use operating-system pointer settings for ordinary adjustment. No model-specific programming software is promised.
What not to do
Do not force covers or ports
Align the battery cover and receiver correctly; never bend the receiver or jam it into USB-C.
Do not expose to hazards
Keep away from liquid, high heat, flames, direct impact, crushing and loose metal objects.
Do not use a damaged battery
Stop if a battery leaks, swells, overheats or has damaged wrapping. Avoid skin contact with leaked material.
Do not overstate the product
Quiet is not silent; ergonomic is not medical; high DPI is not a gaming-performance certificate.
Warnings and limitations
Cleaning: switch off, remove the receiver and battery, then wipe with a soft dry cloth. Use no solvent, spray, abrasive or dripping cloth; keep the optical opening dry.
Radio use: nearby 2.4GHz devices, USB 3.x electrical noise, metal barriers and crowded wireless environments can reduce range. Move the receiver or use a short extension/hub if appropriate.
Storage: switch off before travel, secure the receiver, remove the battery for extended storage and keep the product away from children and pets.
Stop use: discontinue use after liquid ingress, impact damage, persistent overheating, burning smell, cracked housing, exposed battery contacts or unstable USB connection.
Technical specifications
Brand / SKU
UGREEN 90371
Model / type
MU003
Colour
Black
Hand orientation
Ambidextrous / either hand
Shape / grip guidance
Compact symmetrical with textured sides; compact fingertip, claw or small-palm use depending on hand size
Connection
2.4GHz wireless through the included USB-A nano receiver
Connection handling
one receiver-based host connection
Stated range
Wireless range is environment-dependent; no exact range figure is used in this draft
Sensor
Optical
DPI levels
800 / 1200 / 1600 / 2400 DPI
Controls
Left click, right click, scroll/middle click; underside DPI selector and power switch
Side-button note
None
Power
1 × AA battery, not included
Battery estimate
Up to 18 months under the current exact UGREEN India product information
Power saving
Automatic sleep helps reduce power use
Receiver storage
Dedicated slot under the removable cover
Compatible systems
Windows, macOS, ChromeOS, Linux and compatible USB-host devices; advanced functions depend on the host
Dimensions / size
Compact portable body; exact dimensions are not printed in the exact gallery
Rechargeable
No
Package contents
1 × UGREEN 90371 mouse; 1 × USB-A nano receiver; product documentation where supplied. AA battery and adapters are not included.
Package contents
The exact mouse, included USB-A nano receiver and product documentation where supplied are listed in the table above. AA battery, USB-C adapter and connected devices are not included.
Exact-SKU research and claim reconciliation
Research result: The exact underside artwork reads model MU003 and shows a USB receiver slot, AA bay, DPI selector and on/off switch. The exact DPI artwork establishes 800/1200/1600/2400. “Metal scroll” in the old title conflicts with exact artwork describing a soft silicone roller, so material is omitted.
Primary sources: exact live UGREEN India product record and current exact-SKU media for 90371.
Visual audit: All seven useful, distinct exact-SKU gallery images are used; no gallery asset required exclusion.
Image-selection rule: every retained asset comes from the exact live Shopify gallery and is placed beside the feature it explains. Conflicting, duplicate, medical, “any surface”, display-performance, file-transfer and unverified gaming artwork is not repeated as a product promise.
Product-specific FAQ
How does UGREEN 90371 connect?
2.4GHz wireless through the included USB-A nano receiver. No Bluetooth and no multi-device switching.
Is the USB receiver included?
Yes. The included nano receiver uses USB-A. Dedicated slot under the removable cover. A USB-C-only host needs a compatible data adapter or hub.
Does it support Bluetooth?
No. This exact SKU is receiver-only and does not contain Bluetooth.
Can it switch between devices?
No Bluetooth and no multi-device switching. Switching modes is not the same as controlling two computers at the same time.
What are the DPI settings?
The exact verified levels are 800 / 1200 / 1600 / 2400 DPI. DPI changes pointer sensitivity, not display resolution or sensor polling rate.
Is it suitable for left-handed use?
Yes, the symmetrical shell can be used in either hand, subject to personal size and grip preference.
Is it completely silent?
No. The primary controls are designed to reduce clicking noise, but the wheel, switches and physical movement can still be heard.
Is it rechargeable?
No. It uses 1 × aa battery, not included and has no charging port or built-in rechargeable cell.
How long will the battery last?
Up to 18 months under the current exact UGREEN India product information. Battery brand, connection mode, DPI, daily use, surface, temperature and switch-off habits can change the result.
Will every button work on macOS?
None. Standard cursor and primary click functions are expected on a compatible host, but shortcuts can vary by OS and application.
Is this a gaming mouse?
It can be used for casual games, but no exact competitive polling rate, programmable-button software, onboard macro memory or latency specification is verified. It is positioned primarily for everyday productivity.
Check the exact model before ordering
Match SKU 90371, colour Black, 2.4ghz wireless through the included usb-a nano receiver, ambidextrous / either hand design and the exact DPI list. Similar UGREEN mouse families can differ in Bluetooth support, buttons, grip, battery estimates and receiver storage.
SKU 90371Black800/1200/1600/2400 DPI1 × AA battery, not included
Dimentions
4.2 x 2.5 x 7.0 cm
Warranty
18 months
Connector Type
USB
Weight
500g
GST Invoice available, just mail back with details to order confirmation mail.
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Ugreen
UGREEN MU003 90371 2.4GHz Silent Mouse, 2400 DPI, Black
Sale priceRs. 665.00
Regular priceRs. 2,220.00
Unit price
2.4GHZ WIRELESS THROUGH THE INCLUDED USB-A NANO RECEIVER
UGREEN MU003 90371 2.4GHz Silent Mouse, 2400 DPI, Black
Overview
UGREEN 90371 is a black compact symmetrical with textured sides optical mouse for office work, browsing, study and everyday computing. It provides 2.4GHz wireless through the included USB-A nano receiver, 4 verified DPI levels and reduced-noise controls. This guide explains fit, setup, power, compatibility and exact limitations without promising medical or competitive-gaming outcomes.
SKU 90371MU003Ambidextrous / either hand2400 DPI max
Exact black MU003 mouse for SKU 90371; the USB-A receiver is stored underneath when not in use.
Key features
Hand orientation
Ambidextrous / either hand.
Shape
Compact symmetrical with textured sides.
Grip guidance
compact fingertip, claw or small-palm use depending on hand size.
Comfort boundary
Ergonomic describes the physical contour, not a medical treatment. Hand size, posture, desk height and grip preference determine comfort; take regular movement breaks.
Three common grip positions are illustrated, but the best fit depends on the user hand and working posture.
Connection modes and device switching
Connection: 2.4GHz wireless through the included USB-A nano receiver.
Host handling: one receiver-based host connection. No Bluetooth and no multi-device switching.
Range: Wireless range is environment-dependent; no exact range figure is used in this draft. Keep the receiver away from heavily shielded ports, crowded 2.4GHz equipment and large metal obstacles.
USB-C note: the supplied receiver is USB-A. A physical USB-C fit requires a compatible data-capable adapter or hub; a charging-only adapter will not work.
Controls and DPI: what each setting changes
Controls: Left click, right click, scroll/middle click; underside DPI selector and power switch. None.
800 DPI
Measured pointer movement for precise tasks.
1200 DPI
Balanced everyday navigation; choose by feel and task.
1600 DPI
Balanced everyday navigation; choose by feel and task.
2400 DPI
Fast pointer travel across a large or high-resolution desktop.
DPI is pointer sensitivity. It does not prove polling rate, latency, gaming class, display sharpness or tracking on every surface.
Exact MU003 sensitivity choices are 800, 1200, 1600 and 2400 DPI.
Reduced-noise controls
What is quieter
The main clicking design is intended to reduce repetitive click noise in shared work, libraries, meetings and late-night use.
What remains audible
Scroll-wheel steps, mode and DPI switches, side buttons, desk contact and physical movement may still make sound.
No percentage promise
Exact model media is not treated as a laboratory sound certificate. “Silent” means reduced-noise, not zero decibels.
User-friendly placement
Use a clean mouse pad and light clicking pressure; a rough desk can create more movement noise than the buttons.
The exact gallery identifies a soft silicone roller and honeycomb-textured side, so legacy metal-scroll wording is not used.
Battery, sleep and power management
Power: 1 × AA battery, not included. This is a replaceable-battery mouse, not a rechargeable mouse.
Battery estimate: Up to 18 months under the current exact UGREEN India product information. Sleep: Automatic sleep helps reduce power use.
Battery care: insert with correct polarity; use one fresh, undamaged battery of the required type; do not mix chemistries; remove it for long storage; recycle depleted batteries through an appropriate collection route.
Setup and usability guidance
Open the compartment: locate the receiver and battery bay without forcing the cover.
Install power: insert 1 × aa battery, not included with the printed polarity.
Select the connection: insert the supplied USB-A receiver into a compatible host or data-capable adapter.
Switch on: use the physical power switch and wait for the host to recognise the pointer.
Set sensitivity: press the DPI control and test each verified level on your normal screen.
Check buttons: confirm scrolling and any side-button behaviour in the actual operating system and application.
The underside identifies the on/off switch, DPI selector, optical sensor, receiver slot and AA battery bay.
Use scenarios
Office and home work
Navigate documents, spreadsheets, presentations, web pages and ordinary desktop applications.
Study and shared spaces
Reduced-noise clicks suit libraries, classrooms, meetings and rooms where repetitive clicking can distract.
Laptop travel
The cable-free design and nano receiver simplify portable setups; store the receiver securely and switch the mouse off before packing.
Multi-screen work
Higher DPI can move the pointer faster across a large desktop; choose a lower setting when fine placement matters.
Tablet use
A tablet must support USB host/OTG and a compatible data adapter for the USB-A receiver.
Casual games
Adjustable DPI may suit casual play, but no competitive polling rate, macro software or latency number is verified.
Compact receiver-based pointer control for an everyday desk or laptop workspace.
Compatible devices and systems
Verified system guidance: Windows, macOS, ChromeOS, Linux and compatible USB-host devices; advanced functions depend on the host.
Windows PCs
Primary pointer, click and wheel functions should work after standard plug-and-play or Bluetooth pairing. Shortcut behaviour is application-dependent.
Mac computers
Primary functions are supported on compatible systems; side-button and mode-button behaviour can differ from Windows.
Chromebooks and Linux
Basic HID mouse functions are expected on compatible hosts; advanced remapping is not promised.
Phones and tablets
A listed mobile OS does not guarantee every app supports a pointer. USB receiver use also requires host/OTG support and a data adapter.
Optical tracking and surface guidance
The optical sensor is intended for common, clean, flat work surfaces such as a mouse pad, paper, finished wood and suitable fabric.
Use a mouse pad when the desk is transparent, mirrored, highly reflective, glossy, uneven or heavily patterned. Dust, hair, moisture and low battery can affect tracking.
No “works on every surface” promise is made. Clear glass and mirrors are specifically not guaranteed.
The exact gallery illustrates wood, paper and cloth; a mouse pad remains the safer choice for glossy, glass or inconsistent surfaces.
What this product does
Provides standard optical pointer, click and scroll input to a compatible host.
Connects by 2.4ghz wireless through the included usb-a nano receiver.
Uses a reduced-noise control design for everyday productivity.
Runs from 1 × aa battery, not included with automatic sleep helps reduce power use.
What this product does not do
It is not rechargeable and has no charging port or built-in battery.
It does not transfer files, add storage, improve display resolution or replace a Bluetooth adapter for other accessories.
It does not guarantee medical relief, injury prevention or correct posture.
It does not provide verified competitive-gaming polling rate, programmable macros or zero-latency performance.
It does not guarantee tracking on glass, mirrors or every material.
What to do
Choose the correct SKU
Match the colour, shape, connection method and DPI list to SKU 90371; related UGREEN mice are not interchangeable.
Check hand fit
Confirm ambidextrous / either hand placement and the preferred grip before long sessions. Change posture and take movement breaks.
Protect the receiver
Use the storage position where verified, or a secure accessory pouch. A lost receiver may not be replaceable by a generic dongle.
Keep firmware expectations simple
Use operating-system pointer settings for ordinary adjustment. No model-specific programming software is promised.
What not to do
Do not force covers or ports
Align the battery cover and receiver correctly; never bend the receiver or jam it into USB-C.
Do not expose to hazards
Keep away from liquid, high heat, flames, direct impact, crushing and loose metal objects.
Do not use a damaged battery
Stop if a battery leaks, swells, overheats or has damaged wrapping. Avoid skin contact with leaked material.
Do not overstate the product
Quiet is not silent; ergonomic is not medical; high DPI is not a gaming-performance certificate.
Warnings and limitations
Cleaning: switch off, remove the receiver and battery, then wipe with a soft dry cloth. Use no solvent, spray, abrasive or dripping cloth; keep the optical opening dry.
Radio use: nearby 2.4GHz devices, USB 3.x electrical noise, metal barriers and crowded wireless environments can reduce range. Move the receiver or use a short extension/hub if appropriate.
Storage: switch off before travel, secure the receiver, remove the battery for extended storage and keep the product away from children and pets.
Stop use: discontinue use after liquid ingress, impact damage, persistent overheating, burning smell, cracked housing, exposed battery contacts or unstable USB connection.
Technical specifications
Brand / SKU
UGREEN 90371
Model / type
MU003
Colour
Black
Hand orientation
Ambidextrous / either hand
Shape / grip guidance
Compact symmetrical with textured sides; compact fingertip, claw or small-palm use depending on hand size
Connection
2.4GHz wireless through the included USB-A nano receiver
Connection handling
one receiver-based host connection
Stated range
Wireless range is environment-dependent; no exact range figure is used in this draft
Sensor
Optical
DPI levels
800 / 1200 / 1600 / 2400 DPI
Controls
Left click, right click, scroll/middle click; underside DPI selector and power switch
Side-button note
None
Power
1 × AA battery, not included
Battery estimate
Up to 18 months under the current exact UGREEN India product information
Power saving
Automatic sleep helps reduce power use
Receiver storage
Dedicated slot under the removable cover
Compatible systems
Windows, macOS, ChromeOS, Linux and compatible USB-host devices; advanced functions depend on the host
Dimensions / size
Compact portable body; exact dimensions are not printed in the exact gallery
Rechargeable
No
Package contents
1 × UGREEN 90371 mouse; 1 × USB-A nano receiver; product documentation where supplied. AA battery and adapters are not included.
Package contents
The exact mouse, included USB-A nano receiver and product documentation where supplied are listed in the table above. AA battery, USB-C adapter and connected devices are not included.
Exact-SKU research and claim reconciliation
Research result: The exact underside artwork reads model MU003 and shows a USB receiver slot, AA bay, DPI selector and on/off switch. The exact DPI artwork establishes 800/1200/1600/2400. “Metal scroll” in the old title conflicts with exact artwork describing a soft silicone roller, so material is omitted.
Primary sources: exact live UGREEN India product record and current exact-SKU media for 90371.
Visual audit: All seven useful, distinct exact-SKU gallery images are used; no gallery asset required exclusion.
Image-selection rule: every retained asset comes from the exact live Shopify gallery and is placed beside the feature it explains. Conflicting, duplicate, medical, “any surface”, display-performance, file-transfer and unverified gaming artwork is not repeated as a product promise.
Product-specific FAQ
How does UGREEN 90371 connect?
2.4GHz wireless through the included USB-A nano receiver. No Bluetooth and no multi-device switching.
Is the USB receiver included?
Yes. The included nano receiver uses USB-A. Dedicated slot under the removable cover. A USB-C-only host needs a compatible data adapter or hub.
Does it support Bluetooth?
No. This exact SKU is receiver-only and does not contain Bluetooth.
Can it switch between devices?
No Bluetooth and no multi-device switching. Switching modes is not the same as controlling two computers at the same time.
What are the DPI settings?
The exact verified levels are 800 / 1200 / 1600 / 2400 DPI. DPI changes pointer sensitivity, not display resolution or sensor polling rate.
Is it suitable for left-handed use?
Yes, the symmetrical shell can be used in either hand, subject to personal size and grip preference.
Is it completely silent?
No. The primary controls are designed to reduce clicking noise, but the wheel, switches and physical movement can still be heard.
Is it rechargeable?
No. It uses 1 × aa battery, not included and has no charging port or built-in rechargeable cell.
How long will the battery last?
Up to 18 months under the current exact UGREEN India product information. Battery brand, connection mode, DPI, daily use, surface, temperature and switch-off habits can change the result.
Will every button work on macOS?
None. Standard cursor and primary click functions are expected on a compatible host, but shortcuts can vary by OS and application.
Is this a gaming mouse?
It can be used for casual games, but no exact competitive polling rate, programmable-button software, onboard macro memory or latency specification is verified. It is positioned primarily for everyday productivity.
Check the exact model before ordering
Match SKU 90371, colour Black, 2.4ghz wireless through the included usb-a nano receiver, ambidextrous / either hand design and the exact DPI list. Similar UGREEN mouse families can differ in Bluetooth support, buttons, grip, battery estimates and receiver storage.
SKU 90371Black800/1200/1600/2400 DPI1 × AA battery, not included
