Model LX-B3503 Quantity 1 Color Black Bluetooth Version v3.0 Operating Range 10~15 meter Compatibility Windows System Microphone No Radio N/A Supports Music Format N/A Power Supply Built-in Battery Built-in Battery Capacity 200mAh Other Features Interface: 1 x Mini USB / 1 x 3.5mm jack; Supports A2DP stereo standard; Supports Class 2; One touch connect button for easy device pairing; Up to 8 hours music playback or continuous with Mini USB charger; Sleep mode for energy saving. Packing List 1 x Wireless receiver 1 x 3.5mm male to male cable (92cm) 1 x USB cable (17cm) 1 x Chinese / English user manual