
UGREEN Bluetooth AptX Transmitter Receiver / 70158
The UGREEN CM144 (item 70158) is a 2-in-1 Bluetooth 5.0 transmitter and receiver with aptX HD support. It connects through a 3.5mm AUX port or optical (SPDIF / Toslink) in and out, so you can send TV sound to Bluetooth headphones or stream music from your phone to a wired stereo.

Transmitter mode (TX): In TX mode the box sends sound from a TV or another source without Bluetooth to your Bluetooth headphones or speakers. You can pair two headphones at the same time, so two people can listen together.
Receiver mode (RX): In RX mode it receives music from your phone, tablet or computer over Bluetooth and plays it through wired speakers, an amplifier or a home stereo.
aptX HD: The adapter supports the aptX HD codec. When the paired device also supports aptX HD, audio is sent at higher quality than standard Bluetooth audio.

Optical and 3.5mm connections: Use the optical SPDIF input and output with a Toslink cable for TVs and audio equipment with an optical port, or the 3.5mm AUX port for devices with a headphone or AUX jack.
Built-in battery: The battery gives up to 15 hours in TX mode and up to 12 hours in RX mode, and charges in about 3 hours through the Micro-USB port. The Bluetooth range is up to 10 m.
Good to know
aptX HD quality needs a Bluetooth device that also supports aptX HD; with other devices the adapter uses standard Bluetooth audio.
Technical Specifications
| Model | CM144 |
| Item Number | 70158 |
| Bluetooth Version | 5.0 |
| Modes | Transmitter (TX) / Receiver (RX) |
| Codec | aptX HD |
| Connections | 3.5mm AUX, optical SPDIF in, optical SPDIF out |
| Power / Charging | Micro-USB |
| Battery Life | Up to 15 hours (TX), up to 12 hours (RX) |
| Charging Time | About 3 hours |
| Range | Up to 10 m |
| Multipoint | 2 headphones at the same time |
| Color | Black |
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