Portable speaker for iPod and MP3 mobile phones (Samsung/Motorola/Nokia/Sony Ericsson) Supports iPod shuffle/mini/nano/video Supports USB data connector; supports SD card Built-in MP3 decoding Supports MP3, DVD, CD, PMP and PC 3.5mm stereo audio input Supports volume control supports +9V Full-function remote control Provides rechargeable function for iPod DC power adapter input Drive unit: 2-inch x 2 + 2.75-inch Output power: Left: 5W (RMS) Right: 5W (RMS) Subwoofer: 10W Frequency: 38 to 250Hz Impedance: 8 Ohms Sensitivity: 85dB THD<0.1% Minimum order quantity: 1,000 to 2,000 pieces