... ,TF,MPS input 3,several colors to selection:pink,black,red,white,etc. Specifications: Output Power: 20W Frequency Response: 100HZ ~ ... -ion battery Battery Type: Lithium Battery Size:95x80x35 mmColor: pink ,red,black,white Features:The Rechargeable Voice Amplifier adopts ABS engineering ... will with no leads or cords attaching you to one point Battery (lithium battery) use time long, can reach 15 hours ...