Brand No Model D600 Quantity 1 Color Red + black Bluetooth Version V2.1+ EDR Operating Range 10 meter Compatibility V2.0 / V1.1 Microphone Yes Channels 1 Total Power 3W Impedance 2ohm 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 Laptops tablets Ipad Iphone cellphones w/ bluetooth Other Features Supports TF card up to 32GB; Interface: 1 x mini USB 1 x 3.5mm jack 1 x TF card slot 1 x USB 2.0; Super bass Hi-Fi easy to operate; With A2DP / AVRCP stereo audio transmission and distance control protocol; Bluetooth code: 0000; Working range: 10m; With voice control play / pause buttons; Built-in microphone; Supports hands-free speaking Packing List 1 x Speaker 1 x USB cable (49cm) 1 x 3.5mm audio cable (49cm) 1 x Chinese / English user manual