Introducing the JBL Charge, the stereo speaker that provides more than 12 hours of playback time from a single charge of its built-in, high-capacity, 6000mAh Li-ion (lithium-ion) rechargeable battery. It can even charge your other mobile devices on the go with its built-in USB port. The JBL Charge wirelessly streams audio from any Bluetooth-equipped smartphone or tablet, and it lets you enjoy unsurpassed portable audio performance from your mobile devices and tablets. With two 1-5/8-inch (41-millimeter) drivers, a built-in bass port, digital signal processing and 2 x 5 watts of amplification, it delivers full-range JBL sound with exceptional bass. Ideal for active, outdoor lifestyles, the portable JBL Charge speaker fits into a backpack and plays from either a vertical or horizontal position, so you can use it just about anywhere. The JBL Charge stereo speaker is a portable audio powerhouse for any environment.