Features:Bluetooth 2.1 with EDR for superior wireless performance.Support A2DP V1.2， Class 2.Play musics from your iPhone， iPod touch， or other devices enabled with Bluetooth technology wirelessly through your home stereo.Control your music directly from your iPhone or iPod touch.Connect a device without ever going near the stereo.Bluetooth connection has a 10m/33ft range for virtually unlimited wireless listening in your home.Designed with power plug and USB charging port(up to 1 amp) for charging your devices， more convenient.USB port supplies maximum 5V/1A output for charging.Small size， pocket and portable.Specifications:Bluetooth version: 2.1 + EDROperating range: Up to 10m / 30ftPower input: 100 ‐240V， 50/60HzAudio output: 3.5mm Audio JackUSB output: (Max.) 5V， 1AProduct size: Approx. 7 * 4 * 4cm / 2.76 * 1.57 * 1.57inProduct weight: Approx. 49g / 1.72ozPackage size: Approx. 17.5 * 10 * 4.5cm / 6.89 * 3.94 * 1.77inPackage weight: Approx. 97g / 3.43ozPackage includes:1 * Bluetooth receiver with EU power plug1 * 3.5mm Audio cable