About this item This bluetooth receiver converts your wired headphones, earbuds, or home audio to wireless. Stable connectivity: Bluetooth 5.0 technology features a reliable wireless range of about 33 ft / 10M, and connecting is seamless. An advanced Bluetooth chip ensures that you can enjoy your music and hands-free calls from your smartphone in premium-quality sound. Automatically reconnects; just turn on the Bluetooth of the cell phone first, and then turn on the Bluetooth receiver for automatic pairing. Big buttons for common device controls; perfect for exercising. Dimensions: 2.6 x 1.3 x 2.2 inches.