Microlab MD212 Bluetooth Wireless Portable Stereo Speaker w/ Hands-free Speakerphone for Tablet, Smartphone and Notebook(Black) 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