This compact speaker combines featherweight size and heavyweight punch, with 2 passive radiators delivering 10 watts of size-defying sound. Easily pair your compatible Bluetooth device using NFC and wirelessly stream rich sound or hands-free phone calls with up to 7 hours of battery life. Double your audio enjoyment with enhanced stereo sound by simply pairing it with a second unit. With 3.5mm stereo input for use with non-Bluetooth devices. Includes a silicon strap.