Compact speaker system for Bluetooth-enabled devices.2-channel stereo sound.Enhanced audio quality.Built in speakers with metal speaker grills.Charges via USB For use with iPhones, iPads and other Bluetooth-enabled devices, the iLive SB311B Bluetooth Speaker System is a compact solution for listening to music at home or on the go. It not only charges via USB, but it offers enhanced audio quality with 2-channel stereo sound. The built-in speakers have metal speaker grills, making them more durable for putting in a backpack or traveling. iLive products are specifically designed to work with the Apple iPod and/or iPhone. Our focus is on delivering a product that serves as an extension of your iPhone or iPod, increasing not only the quality of sound, but also the range, and at a great value.