Microlab MD220 2W Tablet Speaker: * Portable speaker for any tablet PCs and smartphones with 3.5mm plug * Special alloy coated drivers and built-in digital processor to deliver rich and clear sound with minimum distortions * Rechargeable battery, energy-saving function * Distortion-free with built-in digital processor * 2 power modes * USB or rechargeable Lithium battery powered * Output Power: 2W RMS * Color: Black