Brand NO Model KTS-04 Quantity 1 Color White + black Bluetooth Version V2.0 + EDR Operating Range 8 meter Compatibility V2.0 / 1.1 Microphone No Channels 1 Total Power 3W Impedance 4ohm Signal to Noise Ratio(SNR) >=76dB Sensitivity 80dB+/-2dB Supports Music Format MP3 WAV WMA Power Supply Built-in battery Built-in Battery Capacity External battery: 300mAh Compatible With Cellphones laptops and tablets w/ bluetooth Other Features Interface: 1 x TF card slot 1 x mini USB 1 x 3.5mm jack; Can play music through bluetooth and connecting to other audio source; Supports TF card up to 32GB; Great hand feeling; Fashionable Hi-Fi easy to operate; Bluetooth match code: 0000; With volume control button play/pause button; Can be charged by connecting to computer and household power source; Frequency response: 130Hz~18KHz; Distortion: THD Packing List 1 x Speaker 1 x USB cable (48cm) 1 x 3.5mm audio cable (49cm) 1 x BL-5B battery 1 x English user manual