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Ugreen  |  SKU: 70601
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UGREEN 70601 CM309 Bluetooth 5.0 Car AUX Receiver

Rs. 1,660.00 Rs. 2,360.00
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Crystal Sound
Long Range
Seamless Stream
Hands-Free Calls
Compact Design
CM309 • STORED 5.0 REVISION • USB-POWERED

UGREEN 70601 CM309 Bluetooth 5.0 Car AUX Receiver

Overview

UGREEN 70601 is an integrated USB-powered Bluetooth 5.0 receiver that sends phone music, navigation and supported calls into an existing car or speaker 3.5mm AUX input. This shopper guide reconciles the exact live media with UGREEN-owned sources so direction, version, codec, call, battery and compatibility claims stay revision-specific.

Bluetooth 5.0SKU 70601CM309Receiver only
UGREEN 70601 UGREEN 70601 coiled-cable AUX receiver product view
UGREEN 70601 coiled-cable AUX receiver product view

Key features

Exact role

an integrated USB-powered Bluetooth 5.0 receiver that sends phone music, navigation and supported calls into an existing car or speaker 3.5mm AUX input.

Audio path

A phone, tablet or computer is the Bluetooth source. CM309 receives that audio, passes it through its attached 3.5mm plug and uses the attached USB-A lead only for power. It cannot transmit AUX audio to Bluetooth headphones.

Codec boundary

SBC is documented for the older 5.0 revision. AAC, aptX, LDAC and LC3 are not asserted for the exact stored artwork.

Power design

No internal battery. The USB-A plug must remain powered whenever the receiver is in use. USB-A supplies 5V operating power; 3.5mm carries analogue audio. Connecting only one lead is insufficient.

Audio direction and connector roles

A phone, tablet or computer is the Bluetooth source. CM309 receives that audio, passes it through its attached 3.5mm plug and uses the attached USB-A lead only for power. It cannot transmit AUX audio to Bluetooth headphones.

Connector rule: a source/output must feed a destination/input. USB power, USB host data, analogue AUX and Bluetooth radio roles are separate even when one enclosure handles several of them.

Start safely: set the correct mode, select the target input and lower every volume control before testing.

UGREEN 70601 Wired output and destination compatibility map
Wired output and destination compatibility map

Sound, codecs, calls and latency

Codecs

SBC is documented for the older 5.0 revision. AAC, aptX, LDAC and LC3 are not asserted for the exact stored artwork.

Latency

No exact latency result is verified. It is suitable for ordinary music/navigation reception, not guaranteed lip-sync, gaming or instrument monitoring.

Microphone and calls

The built-in microphone supports hands-free calls. Call clarity depends on mic position, road/vent noise, phone network and car acoustics; it is not active noise cancellation.

Real-world fidelity

Source file, negotiated codec, radio conditions, analogue cable, amplifier and speakers/headphones all affect the result. A newer Bluetooth number is not automatically higher sound quality.

UGREEN 70601 Exact Bluetooth 5.0 revision artwork
Exact Bluetooth 5.0 revision artwork

Use scenarios

Scenario 1

Adding phone music to an older car AUX system.

Scenario 2

Playing navigation prompts through car speakers.

Scenario 3

Hands-free calls using the built-in microphone.

Scenario 4

Streaming to an older powered home speaker with USB nearby.

Scenario 5

Automatic use with vehicle USB power after initial pairing.

UGREEN 70601 Vehicle AUX listening scenario
Vehicle AUX listening scenario

Setup and usability guidance

  1. Step 1: Connect USB-A to a suitable power port and 3.5mm to the AUX input.
  2. Step 2: Select AUX on the stereo and start at low volume.
  3. Step 3: Open the source Bluetooth menu and choose the UGREEN/CM309 receiver.
  4. Step 4: Play a test track and make a stationary call to check microphone pickup.
  5. Step 5: If power noise is audible, try a different compliant USB supply or route the cable away from interference.

Usability rule: establish one clean path first. Add a second source, listener, output or peripheral only after the first works reliably.

Controls

Playback and calls are primarily controlled from the phone. Complete pairing and choose AUX while parked.

Second-device behaviour

The exact stored 5.0 artwork does not verify two-phone multipoint. Pair one active source; later regional 5.3/5.4 dual-phone claims are not imported into this revision.

Recovery

Unplug USB power, forget CM309 on the source, reconnect power and pair again within one metre. Keep other saved phones disconnected during recovery.

UGREEN 70601 Three-step power and pairing guide
Three-step power and pairing guide

Compatible devices and systems

Verified class: Bluetooth music/call sources and car stereos, powered speakers or amplifiers that offer both a 3.5mm AUX input and a suitable USB-A power source.

  • Match the operating-system/audio profile and connector role, not only the Bluetooth logo.
  • Confirm whether you need programme audio, microphone return, peripheral data or file transfer; these use different profiles.
  • For AUX/RCA products, confirm the destination is a line-level input and already has its own amplifier.
  • For PC adapters, verify driver requirements and disable a competing built-in Bluetooth radio.
  • For two-way products, confirm that the chosen TX or RX mode matches the wired device.
UGREEN 70601 Powered-speaker receiver use scenario
Powered-speaker receiver use scenario

What this product does

  • Receives Bluetooth audio from a compatible source.
  • Outputs analogue audio to the stated 3.5mm and/or RCA line input.
  • Supports only the call, control and source-count behaviour documented for this revision.
  • Reconnects to a saved compatible source when powered and available.
  • Modernises existing audio equipment without replacing its amplifier or speakers.

What this product does not do

  • receiver only; no battery, Bluetooth-headphone transmission, RCA/optical output, verified multipoint, AAC/aptX/LDAC, USB data audio or water rating; not for cars without AUX.
  • Does not guarantee uninterrupted wireless service through metal, walls, crowds or heavy 2.4GHz interference.
  • Does not repair a damaged source, USB port, AUX socket, amplifier or speaker.
  • Does not make a connector compatible merely because it fits physically.
  • Does not prove ANC, aptX, LDAC, multipoint or microphone return from the Bluetooth version number alone.

What to do

Check the label

Confirm SKU, model and stored revision on the product or box before relying on a specification.

Begin with one endpoint

Pair and test one path before adding any supported second device or output.

Lower volume first

Protect hearing and speakers when changing mode, output, codec, call profile or device.

Keep connections dry

Inspect USB and audio plugs, remove debris without metal tools and dry completely before power.

Use official drivers/manuals

Use the exact CM/BT model instructions; related UGREEN revisions can use different buttons and radios.

Pause before switching

When two sources are connected, pause the current programme before starting the other.

What not to do

Do not infer features

Bluetooth 5.x/6.0 alone does not establish codec, ANC, microphone, multipoint or delay.

Do not force plugs

Stop if a connector does not align; check port type, direction, damage and case clearance.

Do not use speaker-level output

AUX/RCA receiver inputs are line-level; passive speakers still need an amplifier.

Do not pair while moving

Configure car and aircraft audio before movement and follow local/crew instructions.

Do not charge damaged cells

Stop for swelling, leakage, odour or abnormal heat and seek proper battery disposal.

Do not borrow reset timing

Sibling models and revisions often use different hold durations and indicators.

Battery, charging and realistic runtime

Battery/power: No internal battery. The USB-A plug must remain powered whenever the receiver is in use.

Charging/connection: USB-A supplies 5V operating power; 3.5mm carries analogue audio. Connecting only one lead is insufficient.

  • Published runtime is normally a controlled maximum; volume, calls, codec, temperature, range and battery age can shorten it.
  • USB-powered models have no reserve runtime and stop when vehicle/computer power stops.
  • Use compliant, undamaged power sources and disconnect any product that becomes unusually hot.
  • Do not leave rechargeable products empty for months; follow the exact manual for long-term storage.
UGREEN 70601 Hands-free call and navigation example
Hands-free call and navigation example

Warnings and limitations

  • Hearing: begin at low volume, limit exposure and stop if you notice discomfort or ringing. Bluetooth features and noise processing are not hearing protection.
  • Battery: never crush, puncture, short, burn or charge a swollen, leaking, wet or unusually hot rechargeable product. USB-powered models still require a sound, compliant 5V source.
  • Aircraft: follow crew instructions, use only permitted headphone outputs and keep wireless devices off whenever directed. Carry lithium products in accordance with airline rules.
  • Driving: pair, mount, select sources and set volume while parked. Hands-free calling does not remove attention or legal responsibilities.
  • Water: no exact product here has a verified IP rating. Keep adapters, plugs and charging ports dry; never connect power while damp.
  • Heat and storage: do not leave the product on a hot dashboard, near a heater or in direct sun. Keep small adapters and cables away from children and pets.
  • Audio ports: connect only to the stated headphone/AUX line-level role. Never connect a 3.5mm/RCA port to mains, passive-speaker output or an unknown industrial signal.

Troubleshooting and reset

No pairing

Bring devices close, verify power/mode, disconnect competing saved devices and pair one endpoint first.

Connected but silent

Check source playback, OS output, TX/RX direction, AUX input selection, cable seating and both volume controls.

Audio but no microphone

The built-in microphone supports hands-free calls. Call clarity depends on mic position, road/vent noise, phone network and car acoustics; it is not active noise cancellation. Confirm the call app input and permissions only where a microphone path is documented.

Drop-outs

Reduce distance and metal/body obstruction, move from crowded 2.4GHz radios and test one connection at a time.

Delay

Compare with a wired path; no unstated codec or Bluetooth version can remove all source and endpoint buffering.

Exact reset path

Unplug USB power, forget CM309 on the source, reconnect power and pair again within one metre. Keep other saved phones disconnected during recovery.

Technical specifications

Product / model UGREEN car Bluetooth audio receiver / CM309
SKU / colour 70601 / grey
Stored-revision Bluetooth 5.0 confirmed by every exact live artwork slide
Wireless role Receiver only
Codec SBC documented for legacy revision; no others asserted
Audio connection Attached 3.5mm AUX plug
Power connection Attached USB-A, required during use
Microphone Built in for supported calls
Listed range Up to 10m under open conditions
Cable form Coiled lead, compact car layout
Battery None
Multipoint Not verified for stored revision

Listed ranges and runtimes are qualified maxima in suitable conditions, not universal guarantees.

Package contents

Package: Integrated CM309 USB-A-to-3.5mm Bluetooth receiver and documentation; no charging cable or battery is required.

Pre-purchase checklist

  • Confirm the exact SKU/revision on the sealed product.
  • Confirm TX, RX or Windows-host direction.
  • Confirm every wired input/output and required power source.
  • Confirm call/microphone, codec and second-device needs separately.
  • Check whether any cable, charger or flight adapter you require is actually listed.

Product-specific FAQ

What exactly is UGREEN 70601?

It is an integrated USB-powered Bluetooth 5.0 receiver that sends phone music, navigation and supported calls into an existing car or speaker 3.5mm AUX input.

What does this receiver connect to?

A phone, tablet or computer is the Bluetooth source. CM309 receives that audio, passes it through its attached 3.5mm plug and uses the attached USB-A lead only for power. It cannot transmit AUX audio to Bluetooth headphones.

Which codecs does SKU 70601 support?

SBC is documented for the older 5.0 revision. AAC, aptX, LDAC and LC3 are not asserted for the exact stored artwork.

Is low latency guaranteed?

No exact latency result is verified. It is suitable for ordinary music/navigation reception, not guaranteed lip-sync, gaming or instrument monitoring.

Do microphone and calls work?

The built-in microphone supports hands-free calls. Call clarity depends on mic position, road/vent noise, phone network and car acoustics; it is not active noise cancellation.

Can two phones or outputs be used?

The exact stored 5.0 artwork does not verify two-phone multipoint. Pair one active source; later regional 5.3/5.4 dual-phone claims are not imported into this revision.

What battery life or power does it use?

No internal battery. The USB-A plug must remain powered whenever the receiver is in use. USB-A supplies 5V operating power; 3.5mm carries analogue audio. Connecting only one lead is insufficient.

Which devices and systems are compatible?

Bluetooth music/call sources and car stereos, powered speakers or amplifiers that offer both a 3.5mm AUX input and a suitable USB-A power source.

What should I do if pairing fails?

Unplug USB power, forget CM309 on the source, reconnect power and pair again within one metre. Keep other saved phones disconnected during recovery.

What is in the package?

Integrated CM309 USB-A-to-3.5mm Bluetooth receiver and documentation; no charging cable or battery is required

What should it not be used for?

receiver only; no battery, Bluetooth-headphone transmission, RCA/optical output, verified multipoint, AAC/aptX/LDAC, USB data audio or water rating; not for cars without AUX.

Exact-SKU research and media reconciliation

Research method: exact live Shopify status, description and every stored image were compared with exact-SKU UGREEN regional pages, UGREEN manuals/support and model mappings. Sibling and later-revision features were excluded when they conflicted.

Media decision: All seven exact live images explicitly identify the installed artwork as Bluetooth 5.0. Later UGREEN regional pages now describe 5.3 or 5.4 revisions, so those version, AAC and dual-phone claims were rejected for the stored SKU media; CM309 identity and USB/AUX receiver role are exact.

Source records: UGREEN source 1 · UGREEN source 2

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  • 5 stars: 7 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
P
Prashanth AR

The quality or product and the work it does is very impressive. Easy connectivity, excellent sound output from connectivity through this module. I would recommend everyone to buy eith eyes closed. I bought it for Honda city 2012 model, works unbelievably good.

A
Arnav

Great product

A
Anonymous

this was the thing I was looking for man I had so much problem connecting multiple audio sources. pretty good product for my use case.

S
SACHIN TIWARI

works like a charm
absolutely worth the price

D
Debashsis Datta

Connected Firestick bluetooth to my Creative GIGA T20 via this Ugreen car audio bluetooth 5.3 & got amazing sound. Thanks to Ugreen.

S
Sasikumar

Valve for Money

B
Balaji

Works like a charm. I use this to stream music from my phone to bose pc speakers. Uses aac codec and sounds awesome ! Thanks Ugreen.
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