Brand N/A Model 308 Quantity 1 Color White Bluetooth Version V2.1 + EDR Operating Range 5~8 meter Compatibility V2.0 / V1.1 Microphone Yes Channels 1 Total Power 3W Signal to Noise Ratio(SNR) >= 85dB Radio N/A Supports Music Format MP3 / WMA / WAV Power Supply Built-in Battery Built-in Battery Capacity 400mAh / 3.7V Compatible With Laptop / tablet PC / Ipad / Iphone and other mobile with Bluetooth BQB Certification No Impedance 4 ohm Sensitivity 80dB +/- 2dB Other Features Interface: Micro USB / 3.5mm audio jack; Suitable for laptop tablet PC Ipad Iphone and other mobile phone with Bluetooth; Supports handsfree; Supports AUX; Mega bass design Hi-Fi easy to use; Bluetooth paired code: 0000; With volume control pause button built-in microphone supports handsfree; Built-in 400mAh 3.7V lithium battery charging voltage: DC 5V 500~1000mA; Charging time: About 3 hours; Frequency response: 20Hz~20000Hz; Degree of distortion: THD =85dB Packing List 1 x Bluetooth speaker 1 x USB cable (50cm) 1 x 3.5mm audio male to male cable (50cm) 1 x Strap (15cm) 1 x Chinese / English user manual