About this item This Bluetooth receiver converts wired headphones, earbuds, or home audio systems into wireless ones. Stable connectivity: Bluetooth 5.0 technology offers a reliable wireless range of about 33 ft/10M, ensuring seamless connections. An advanced Bluetooth chip guarantees premium-quality sound for music and hands-free calls from your smartphone. Automatically reconnects: Simply turn on your smartphone's Bluetooth first, then activate the Bluetooth receiver for automatic pairing. Big buttons for easy control of common device functions; ideal for exercising. Product dimensions: 2.6 x 1.3 x 2.2 inches.