• Wireless speaker with rich stereo sound • One 5 in. + two 2 in. built-in speakers • Full range speaker and passive radiator delivers extra bass • Lightweight and portable • Bluetooth(R) V4.0 compatibility allows audio system to work with Bluetooth(R)-enabled devices • USB microSD(TM) Card aux and microphone inputs • FM tuner • Output power: 16 watts • Operating voltage: DC 5 volts • 3.7-volt 2400 mAh rechargeable battery • AC output power: 110 volts to 240 volts 50/60 Hz • DC output power: 5 volts 500 mA • Frequency response: 100 Hz to 20 kHz • Wireless range: 32.8 ft. • Includes USB cable aux cable carrying strap and manual • Blue;