2-in-1: In TX mode, the Bluetooth transmitter plugs into non-Bluetooth devices such as , MP3 players, computers, etc. through AUX and RCA jacks, and transmits sound to Bluetooth headsets, Bluetooth speakers; In RX mode, Bluetooth Receiver The receiver can connect to wired speakers, car audio inputs, home theater receivers and receive audio from smartphones via Bluetooth. : Bluetooth 5.0 with built-in CSR chip, supports , LL, extremely low latency, minimizes voice delay, allowing you to enjoy perfect synchronization and CD-like sound. Stable Connection: The Bluetooth adapter supports a Bluetooth transmission distance of 230 feet long, the transmission range covers the entire room, and the sound is loud; you can hear it upstairs, downstairs, in the kitchen, garage, balcony and even in the yard. Dual pairing mode: In TX mode, you can connect two Bluetooth speakers or Bluetooth headphones at the same time, and the speakers or headphones can ring at the same time; In RX mode, you can connect two Bluetooth-enabled mobile phones at the same time. Rechargeable: 3 hours charging time. It can be used continuously for 8 hours when fully . It supports charging while working, so you don't have to worry about power issues. You can plug in the power while you work. This mode can avoid frequent charging problems. Colour:Black Material:Plastic Package Contents: 1 * Converter 1 * Power cord 1 * Lotus cable 1 * 3.5mm audio and video cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.