Features: Transmission mode (suitable for sending computer/TV/radio/MP3 audio to Bluetooth headset/stereo) Receiving mode (suitable for ordinary audio/car/wired headset, etc.) Transmit/receive mode switch: The audio cable is inserted into TRANSMITTER for transmission mode, and the indicator light is blue The audio cable is plugged into RECEIVE for receiving mode, and the indicator light is red Plug in the computer for launch mode, no need to plug in the audio cable, just plug in the USB Description: 100% brand new and high quality Model: YET-TR6 Bluetooth version: 5.0+EDR Technology: BT5.0, AVRCP (receiver mode only), A2DP Operating range: up to 10 meters/33 feet (no obstacles) Transmitter mode: blue LED light is on Receiver mode: red LED light is on Product size: 25*42*11mm Product net weight: 8g Package include: 1x 5.0 Bluetooth receiver transmitter 1xaudio cable 1xmanual Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3cm measuring deviation due to manual mearement.