Features: brand new and high quality The appearance of the product is exquisite. Using Bluetooth-compatible 5.1 chip design, compatibility and stability are for stronger. Bluetooth-compatible receiver (RX), Bluetooth-compatible transmitter (TX), and call are integrated in a three-in-one design. Equipped with AUX in-car Bluetooth-compatible speakers, you can enjoy mobile music, voice navigation and broadcast. The built-in high-definition microphone supports wireless music listening, hands-free calling, and navigation. Upgrade wired to wireless in seconds, connect to ordinary speakers, and shocking sound effects. Cool indicator light, red/blue dual color, transmit/receive mode can be switched at will. Built-in 150mAh rechargeable battery, long battery life. Support the TV for launch mode, solve the problem that the TV cannot connect to the Bluetooth-compatible headset. Support 10~15 meters long-distance transmission, independent antenna, enhance Bluetooth-compatible signal. Win7/8/10 system, no need to drive, plug and for play, easy to connect to Bluetooth-compatible speakers/headphones. The product connection is simple, without any cumbersome driving and downloading APPs, plug and for play. Specifications: Product Name: Bluetooth-compatible Audio Receiver Transmitter 3 in 1 Bluetooth-compatible version: 5.1 BT name: T06 Connection range: 15M Battery capacity: 150MAH Working time: receive 8h, transmit 5h Frequency range: 10HZ-20HKZ Signal-to-noise ratio: less than 110dB Size: approx. 7.1x2.1x1.2cm/2.80x0.83x0.47in Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1PC x 3.5mm Bluetooth-compatible Transmitter Receiver