Brand N/A Model D600 Quantity 1 Color White + black + blue Bluetooth Version V2.1 + EDR Operating Range 10 meter Compatibility V2.0 / V1.1 Microphone Yes Channels 1 Total Power 3W Impedance 2 ohm Signal to Noise Ratio(SNR) >= 80dB Sensitivity 80dB +/- 2dB Radio N/A Supports Music Format MP3 Power Supply Built-in Battery Built-in Battery Capacity 800mAh Compatible With Laptop notebook tablet PC Ipad Iphone and other cellphone with Bluetooth Other Features Interface: Mini USB / USB 2.0 / TF card slot / 3.5mm jack; Supports TF card / USB disk up to 32GB; Supports handsfree; Supports USB disk mega bass high fidelity easy to operate Bluetooth V2.1 + EDR with A2DP / AVRCP stereo audio transmission and remote control system protocol; Bluetooth matching code: 0000; Bluetooth transmitting range: 10 meters; With volume control play / pause button built-in microphone supports hands-free calls; Can be charged via computer or adapter; Built-in 3.7V 800mAh rechargeable lithium battery; Charging voltage: 5V current: 500~1000mA; Charging time: 3 hours; Speaker: 1.5 x 1 NeFeB full-band 1.5"; Frequency response: 100~200KHz; Degree of distortion: THD Packing List 1 x Bluetooth speaker1 x USB cable (50cm)1 x 3.5mm audio cable (50cm)1 x Chinese / English user manual