Smooth: Bluetooth enables you to wirelessly transfer your TV, PC/laptop or other favorite device to your headphones!With our unique two-in-one design, you can also use ZF380 as a receiver with Bluetooth capability to connect your favorite wired speakers, speakers, home theaters, etc. match: The Bluetooth transmitter receiver is compatible with 99% of the TV on the market, and our ZF380 supports fiber/AUX and RCA audio output without additional wire interference. No latency: ZF380 USES low latency technology to reduce Bluetooth latency - providing perfectly synchronized, high-quality sound. LED indicator state: The indicator design allows you to clearly identify the content and connection mode, making it more convenient to use.Built-in 300mAh battery, charging about 1.5 hours can be as long as 7-8 hours of working time. Colour:black Material:ABS Size: 6.5 x 6.5 x 1.8cm Package Contents: 1 * ZF380 Bluetooth Audio Adapter 1 * Mini USB Charging Cable 1 * 3.5mm Audio Cable 1 * 3.5mm jack to 2 RCA Plug Cables 1 * Digital Optical Toslink Audio Cable Only the above package content, other products are not included. Note: Light 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.