Brand No Model E301 Quantity 1 Color Red + black Bluetooth Version V2.0 + EDR Operating Range 10 meter Compatibility V2.0 / 1.1 Microphone Yes Channels 1 Total Power 5W Impedance 2.6ohm Signal to Noise Ratio(SNR) 80+/-2dB Sensitivity 85dB Radio N/A Supports Music Format MP3 Power Supply Built-in Battery Built-in Battery Capacity 240mAh Compatible With Cellphones laptops and tablets w/ bluetooth Other Features Interface: micro USB / TF card slot; With blue light when power on; Intelligent voice indicating (Chinese / English); Supports TF card up to 32GB; Frequency: 2.4~2.48GHz; Bluetooth code: 0000; Communication protocol: HS / HF / A2DP / AVRCP / OPP; With volume control play / pause button; Supports hands-free; Touch style convenient to use; Charging dock: voltage: 3.7V battery: lithium-ion battery (5000mAh); Output voltage: USB 5V current: 1000mA; Input port: micro USB; Input voltage: 5V; Current: 500~1000mA; Charging time: 3~5h; USB port can provide charge for cellphone tablets and other devices Packing List 1 x Speaker 1 x Charging dock 1 x USB cable (27cm) 1 x English user manual