UGREEN CM667 Bluetooth Transmitter & Receiver

Features

2-in-1 Bluetooth Transmitter and Receiver

The UGREEN wireless Bluetooth 5.2 adapter offers both TX (transmitter) and RX (receiver) modes, allowing you to convert non-Bluetooth devices into Bluetooth-enabled ones. Connect it to devices like Home Stereos, TVs, PCs, or Car stereos to enjoy high-quality sound wirelessly through Bluetooth speakers or headphones.

Aux and RCA Devices Supported

This Bluetooth transmitter and receiver includes a 3.5mm aux cable, a 3.5mm aux adapter, and a 3.5mm to RCA cable. It is compatible with a wide range of devices, supporting both RCA and 3.5mm aux jack ports.

Stable Bluetooth 5.2 Technology

Equipped with a Bluetooth 5.2 chip, the UGREEN Bluetooth transmitter and receiver ensures faster connections, stronger resistance to interference, and double the transmission efficiency compared to Bluetooth 4.0. Experience smooth and clear audio without interruptions.

Multiple Usage Scenarios

The UGREEN 2-in-1 Bluetooth transmitter and receiver is suitable for various applications, including listening to TV audio privately, connecting to home stereo amplifiers, wirelessly playing music from phones on speakers, use in car stereos, treadmills, and marine audio systems. Audio Decoding Protocols supported are SBC and AAC.

Specifications

Bluetooth Version: 5.2
Input: 3.5MM
Bluetooth Profiles: A2DP/AVRCP/HSP/HFP
Codecs: RX: SBC/AAC; TX: SBC
Frequency Domain: 2.402GHz - 2.480GHz
Frequency Response: 20Hz - 20kHz
Output Level (Receiving): ≤ 630mVrms (RL=100kΩ)
Input Level (Transmitting): < 0.75Vrms
SNR (Signal to Noise Ratio): ≥ 92dB A-wt
THD+N: ≤ 0.1%
Transmit Range: Up to 10m / 33ft
Mic Sensitivity: -40 ± 3dB (0dB=1V/Pa)
Transmit and receiver cannot be used simultaneously.
Battery Capacity: 3.7V / 300mAh
Power Supply: USB-C Port (5V)
RX Operating Time: 22 Hours
TX Operating Time: 27 Hours
Approximate Charging Time: 2 hours

Product Diagram and Connectivity

The device features a compact design with a USB-C charging port and a 3.5mm audio output/input. It includes controls for volume adjustment and song skipping, along with a TX/RX switch and an MFB (Multi-Function Button) for pairing.

Connectivity Examples:

Transmitter (TX) Mode: Connect to TVs, PCs, or Projectors to send audio wirelessly to Bluetooth speakers or headsets.
Receiver (RX) Mode: Connect to Phones, Tablets, or Laptops to receive audio wirelessly and output to Car Stereos, Sound Bars, or external speakers via 3.5mm aux or RCA connections.

Included accessories are 3.5mm to 2 Male RCA cables, a 3.5mm audio cable, a USB-C charging cable, and a 3.5mm male to male connector.

EU Declaration of Conformity

Manufacturer: Ugreen Group Limited, Ugreen Building, Longcheng Industrial Park, Longguanxi Road, Longhua, Shenzhen, China.

EU Authorized Representative: Ugreen Group GmbH, Mannheimer Str. 13, 30880 Laatzen, Deutschland.

Ugreen Group Limited declares that the product, Bluetooth Audio Receiver/Transmitter, Model Number: CM667, SKU: 35223, conforms to the following EU directives:

Directive 2014/53/EU RED (Radio Equipment Directive): Test Certificate No. BL-SZ23A0774D01 issued by Shenzhen BALUN Technology Co., Ltd.
Directive 2011/65/EU RoHS (Restriction of the use of certain Hazardous Substances): Test Report number BCTC2311645137-2R issued by Shenzhen BCTC Testing Co., Ltd.
Regulation (EC) No 1907/2006 REACH: Test Report number BCTC2311011743-1R issued by Shenzhen BCTC Testing Co., Ltd.
POPs (EU)2019/1021 (persistent organic pollution) SCCP & HBCDD: Test Report number BCTC2311645137-4R issued by Shenzhen BCTC Testing Co., Ltd.

Conformity is declared in relation to the following standards:

IEC 62368-1: 2018
EN IEC 62368-1: 2020+A11: 2020
ETSI EN 301 489-1 V2.2.3 (2019-11)
ETSI EN 301 489-17 V3.2.4 (2020-09)
EN 55032: 2015+A11: 2020
EN 55035: 2017+A11: 2020
EN IEC 61000-3-2: 2019+A1: 2021
EN 61000-3-3: 2013+A2: 2021
ETSI EN 300 328 V2.2.2 (2019-07)
EN 62479: 2010
EN 50663: 2017
IEC 62321
ECHA SVHC
ISO 18219-1:2021
IEC 62321-9:2021

Ugreen Group Limited confirms that no Substances of Very High Concern (SVHC) were present in the product in excess of 0.1% by weight, as per Article 33 of EU REACH Regulation (1907/2006), based on available data as of June 14, 2023.

Authorized person for technical documentation:

Name: Chi Yang

Position: Manager

Date of issue: December 05, 2023

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