The AV Link Bluetooth 2-in-1 Audio Transmitter & Receiver is a compact device for wireless audio. Connect it to TVs, projectors, or other audio devices to stream to Bluetooth headphones, speakers, or soundbars. Alternatively, connect it to headphones, amplifiers, or car systems to pair with smartphones, tablets, or other Bluetooth devices. Features include multi-point support for shared listening, a 10m transmission/reception range, and an 8-hour rechargeable battery. It makes any device with a 3.5mm or RCA audio connection Bluetooth compatible. The improved design is compact and easier to use. Transmitter connects Bluetooth headphones, speakers, or sound-bars to LED TVs and projectors. Receiver connects traditional audio devices with your smartphone or tablet. It offers up to 8 hours of playback on a single charge and has a slim, compact design for portability.