UGREEN Bluetooth Audio Receiver/Transmitter
Model: CM403 | P/N: 80893
Bluetooth
Package Contents
- 1 × Bluetooth Audio Receiver/Transmitter
- 1 × USB-A to USB-C Cable 0.5m
- 1 × User Manual
Product Overview
3.5mm Audio Jack
UGREEN
Charging Port
Button
- 3s Power On/Off
- 2× Manual Pairing
- 10s Reset (when power off)
Slide Switch
- TX → RX Transmitter Mode
- TX ← RX Receiver Mode
LED Indicator
Microphone
01 Mode Select
Transmitter mode (TX)
Wirelessly stream audio from your non-Bluetooth TV, Switch, or CD player to your Bluetooth earphones or speakers.
Diagram: Shows the adapter connected to a TV, in-flight entertainment system, earphones, and headphones.
Receiver mode (RX)
Wirelessly stream audio from your Bluetooth-enabled phones, tablets, or computers to your non-Bluetooth stereo system (amplifiers, car stereos, etc.).
Diagram: Shows the adapter connected to tablets, phones, speakers, and amplifiers.
02 TX Mode-Bluetooth Headphones (1st set)
- Select mode, then power on: Slide the switch to "TX" mode, then press the button for 3s to turn on the product.
- Enter pairing mode (AirPods): Put the AirPods in pairing mode based on its manual.
- Pair Device (AirPods): The product will flash blue to indicate successful pairing.
- Enjoy: Plug it into an audio source device (e.g., in-flight entertainment) to enjoy.
Diagrams: Illustrate the steps: sliding the switch, pressing the button, AirPods in pairing mode (flashing blue & red), and connected status (flashing blue).
03 TX Mode-Bluetooth Headphones (2nd set)
- Complete the pairing with the 1st set of headphones according to the steps above.
- Put the 2nd set of headphones into pairing mode based on its manual.
- Double-press the button to put the product into pairing mode and let it connect to the 2nd headphones.
- The product will flash blue to indicate a successful pairing.
Diagrams: Show pairing the first set of headphones, then the second set, with indicators for pairing and connected status.
04 RX Mode-1st Phone
- Select mode, then power on: Slide to "RX" mode, then press and hold the button for 3s to turn on the product.
- Turn on Bluetooth: Open up your phone's Bluetooth list.
- Pair Device: Connect to "UGREEN-80893". The product will flash blue to indicate a successful pairing.
- Enjoy: Plug it into an audio output device (e.g., speaker) to play music.
Diagrams: Illustrate the steps: sliding the switch, powering on, phone's Bluetooth settings showing "UGREEN-80893" as connected (flashing blue), and the adapter plugged into a speaker.
05 RX Mode-2nd Phone
- Complete the pairing with the 1st phone (tablet/computer).
- Double-press the button to put the product in pairing mode. During this time, the 1st phone will auto-disconnect from the product. Search and connect to "UGREEN-80893" in your 2nd phone's Bluetooth list. The product will flash blue once paired.
- Click to reconnect to the product in your 1st phone Bluetooth list.
Note: It only plays music on one mobile phone at a time.
Diagrams: Show pairing with a first phone, then a second phone, with indicators for pairing and connected status.
06 Charging
Diagram: Shows the adapter with LED indicators for battery status:
- Low Battery: Flashing red light
- Charging: Solid red light
- Fully Charged: Solid blue light
07 Reset
Turn It Off: Press button for 3s.
Resetting: Press button for 10s.
Diagrams: Show the device being turned off by pressing the button for 3 seconds, and being reset by pressing the button for 10 seconds.
Warning
- The product contains a polymer lithium-ion battery. Do not dismantle, crush, squeeze, or expose it to fire.
- Stop using if it is swollen.
- Do not expose the product to excessive temperature.
- Stop using if the battery is submerged.
- Keep out of reach of children and pets.
- If a battery is swallowed or inserted elsewhere in the body, seek emergency care immediately.
Specifications
| Feature | Specification |
|---|---|
| Model | CM403 |
| Bluetooth Version | 5.0 |
| Frequency Range | 2400MHz-2483.5MHz |
| Max. RF Output Power | 4 dBm (conducted) |
| Transmission Distance | 10 m Max (no blocking) |
| Bluetooth Profile | A2DP/AVRCP/HSP/HFP |
| Codecs | RX: SBC/AAC TX: SBC |
| Frequency Response | 20 Hz-20 kHz |
| Output Level (Receiving) | ≤1Vrms RL=100 kΩ |
| Input Level (Transmitting) | ≤0.75 Vrms |
| SNR | ≥90 dB |
| THD+N | ≤0.1% |
| Mic Sensitivity | -42±3dB |
| Audio Port | 3.5mm audio |
| Charging Port | USB-C |
| Battery Type | Polymer Lithium-Ion Battery |
| Capacity | 140 mAh 3.7 V (518 mWh) |
| Limited Charging Voltage | 5.25V= |
| Charging Time | About 1.5 hours |
| Operating Time | 5.5 hours (RX) 8 hours (TX) |
| Compatible Systems | Windows/macOS/Linux/Android |
*The data are measured by UGREEN lab but may vary based on specific circumstances.
FCC Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Warning: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.
WEEE
This symbol on the product(s) and / or accompanying documents indicates that, under the new Directive 2012/19/EU on waste electrical and electronic equipment (WEEE), product(s) used electrical and electronic equipment (WEEE) should not be mixed with general household waste. For proper treatment, recovery and recycling, please take this product(s) to designated collection points where it will be accepted free of charge. Disposing of this product correctly will help save valuable resources and prevent any potential negative effects on human health and the environment, which could otherwise arise from inappropriate waste handling.
Please contact your local authority for further details of your nearest designated collection point. Penalties may be applicable for incorrect disposal of this waste, in accordance with your national legislation. For professional users in the European Union: If you wish to discard electrical and electronic equipment (EEE), please contact your dealer or supplier for further information. For disposal in countries outside of the European Union: This symbol is only valid in the European Union (EU). If you wish to discard this product please contact your local authorities or dealer and ask for the correct method of disposal.
Declarations of Conformity
GB Declaration of Conformity
Hereby, Ugreen Group Limited declares that the product is in compliance with Directive UK Radio Equipment Regulations (SI 2017 No.1206) & The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 (SI 2012 No.3032). Learn more about the GB Declaration of Conformity is available at the following internet address: https://www.ugreen.com/download/
Ugreen Group Limited
Add: Ugreen Building, Longcheng Industrial Park, Longguanxi Road, Longhua, Shenzhen, China
UK REP: Acumen International Business Consultancy Limited
Add: 94 Ock Street, Abingdon, OX14 5DH, UK
EU Declaration of Conformity
Hereby, Ugreen Group Limited declares that the product is in compliance with Directive 2014/53/EU & 2011/65/EU. Learn more about the EU Declaration of Conformity is available at the following internet address: https://www.ugreen.com/download/
Ugreen Group Limited
Add: Ugreen Building, Longcheng Industrial Park, Longguanxi Road, Longhua, Shenzhen, China
EU REP: Ugreen Group GmbH
Add: Mannheimer Str. 13, 30880 Laatzen, Germany
IC Statement
EN: This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference; (2) this device must accept any interference, including interference that may cause undesired operation of the device.
FR: Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage ; (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
CAN ICES-003(B) / NMB-003(B)
L'appareil a été évalué pour répondre aux exigences générales d'exposition aux RF. L'appareil peut être utilisé dans des conditions d'exposition portable sans restriction.
FCC ID: 2AQI5-CM403
IC: 26850-CM403
R 210-160451
Warranty Information
A limited 2-year warranty applies to all UGREEN products purchased from UGREEN official store or authorized sellers. Please feel free to contact us if you run into any problems.
