Brand N/A Model S10 Quantity 1 Color Red + black Bluetooth Version V3.0 Operating Range 10 meter Compatibility V2.1 / V2.0 Microphone Yes Channels 2 Total Power 3W Impedance 4 ohm Signal to Noise Ratio(SNR) 75dB Sensitivity N/A Radio N/A Supports Music Format MP3 Power Supply Built-in Battery Built-in Battery Capacity 500mAh Compatible With Support Iphone / Ipad / HTC / Samsung / Motorola and other smart phones and tablet PCs with Bluetooth BQB Certification No Other Features LED Indicator: 1 x LED indicator (red in charging and blue in working); Interface: 1 x mini USB & 3.5mm audio input port 1 x TF card slot; Supports TF card up to 32GB; Music play time: 4~8 hours; Charging time: 3 hours; USB charging input: DC 5V 500mA; Supports data transmission between TF card and computer; Bluetooth Handsfree calling function; Non-slip bottom Packing List 1 x Bluetooth speaker 1 x USB & Audio cable (50cm) 1 x English user manual