Microlab MD212 Bluetooth Wireless Portable Stereo Speaker for Tablet, Smartphone and Notebook(Red) Output Power: 2 Watt RMS Power Distribution: 2x 1 Watt RMS Frequency Range: 150 Hz - 20 kHz Speakers: 2x 1.5-Inch Driver Type, 2x 1.5 Watt, 4 Ohm Rated Powe Interface: NIL (output), 3.5 mm Stereo Plug, Micro-USB (input), Bluethooth Wireless Technology with Bluetooth 2.1 + EDR, HFP and A2DP Profiles Built-in Bluetooth wireless technology with Bluetooth 2.1 + EDR, HFP, A2DP profiles Rechargeable battery, Energy-saving function Portable sound bar for any tablets and Smartphone with 3.5 mm stereo input 2x1 alloy coating drivers to deliver rich and clear sound Distortion-free with built-in digital processor Two power modes - USB or rechargeable Lithium battery powered