Plug and play, effective distance control within 10 meters, high definition is not blocked Bluetooth stereo audio transmitter device can be used with digital devices with Bluetooth devices (such as speakers). Bluetooth speakers or Bluetooth headsets, etc.) to achieve high-definition audio transmission indoors. The Bluetooth transmitter/receiver can be used in almost any digital product with audio output (3.5mm audio interface), just connect the audio to the input port. Including computers, TVs, and all other products that do not have their own Bluetooth transmitter function. With Bluetooth headset or Bluetooth speaker, you can easily enjoy music and TV shows that affect others and ensure privacy. Color: Black Material: ABS Size: 65x26x11mm Package Contents: 1 x Bluetooth Transmitter Host 1 x 3.5 Audio Cable 1 x 3.5 to 3.5 AV TV Cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be a little different from the real thing. The measurement allowed error is +/- 1-3cm.