Erasky Portable Wireless Bluetooth Speaker, LED Light, 2 Speaker Big Battery Last 6 Hours (Blue) Supports Wireless Music Streaming via New Bluetooth v3.0 Technology. stereo audio input interface, easy to connect computers, digital music players, cell phones and other audio devices. Large-capacity battery: 1200mah, Playing time up to 6h New style design, like eyeglass box, very charming It can be a computer speaker while you connect it with computer through USB cable