Brand N/A Colors Green Quantity 1 Type Mini Material Silicone + plastic Total Power 3W Impedance 4ohm Signal to Noise Ratio(SNR) 30dB Sensitivity 60dB Channels 2 Power Supply Rechargeable Built-in Battery 220mAh Plug Type USB Powered Interface AES / EBU input Other Features Suitable for mobile phone MP3 / MP4 player Ipad tablet PC voice recorder netbook laptop and desktop computer; Built-in rechargeable lithium battery convenient for outdoor use; It can be also absorbed onto the table surface as a stand for your cell phone. Packing List 1 x Speaker 1 x Charging cable (27cm) 1 x Audio cable (40cm)