Compatible with: iPhone， PSP， laptop， pc， ipadConnection: WirelessInterface: Usb micro， 3.5mm audioAudio source: Bluetooth enabled deviceBlackBluetooth Version: V3.0Protocol: A2DPTransmission distance: W / O bottleneck ?��10mResources: UsbElapsed time: Up to 8 hoursProduct weight: 0.037 kgPackage Weight: 0.0657 kgProduct size (lxwxh): 5.3x2.5x1 cm / 2.08x0.98x0.39 inchPackage size (lxwxh): 11x7.5x2 cm / 4.32x2.95x0.79 inchPackage Contents: 1 x 3.0 audio bluetooth music receiver， 1 x USB cable，