This smart speaker built in AI smart chip with voice control. This portable speaker only comes 3'' diameter* 3.5''H which is perfect for travel or home. 1200mAh battery capacity is able to playing 12 hours and stand by 240 hours.Charging time: 2-3 hours. Ask speaker for a song, genre from music, or play audiobooks, radio stations. It will answer your questions, read news, report the weather, set alarms, timers and more.