Portable Speaker features a long-lasting battery to provide up to 6 hours of playback time. General audio out interface supports any digital device (not included). 3-watt output provides crisp clean audio whether you re listening to music or answering a phone call. Auxiliary play mode allows you to directly connect your device. Features Provides up to 6 hours of playback time Supports any digital device with general audio out interface 3-watt output for crisp clean audio Connects directly to your device with auxiliary play mode Perfect for listening to music or answering a call