Brand N/A Model UI-B30 Quantity 1 Color Grey + black Bluetooth Version V3.0 Operating Range 10 meter Compatibility V2.0/2.1 Microphone Yes Channels 2.1 Total Power 5W Impedance 8ohm Signal to Noise Ratio(SNR) 80dB Sensitivity 85dB Radio FM Radio (87.5~108MHz) Supports Music Format MP3 Power Supply Built-in Battery Built-in Battery Capacity 500mAh Compatible With Iphone 4 / 4S BQB Certification No Other Features Machine body with plastic and rubber exterior good hand feel; Support bluetooth music play and hands-free calls; Support TF card and FM radio Packing List 1 x Bluetooth speaker 1 x USB data cable (50cm) 1 x 3.5mm jack cable (60cm) 1 x Chinese & English user manual