It Combined with Smart Touch Screen technology and Echo Dot design,Sensitive touch offers you funny control.Gently touching with your fingertip easily achieve switching the songs and volume control and taking the calls.A fun gift that's guaranteed to bring a smile.Super compact design,40mm 5W driver,3D Digital audio processor,with subwoofer resonator,You want a loud sound during the meeting? When watching a movie on a computer,at home party,you want a larger volume,better sound?all satisfy you.Built-in 1200mah High performance li-battery,Enjoy 12-15 hours of music at 50% volume,if you play it 1-2 hours every day at mid volume,it no need to charge in 2-3 weeks,up to three times longer than similar-sized portable speakers.Recharge in just 2-3 hours using the included Micro USB cable.