... ,TF,MPS input 3,several colors to selection:pink,black,red,white,etc. Specifications: Output Power: 20W Frequency Response: 100HZ ... li-ion batteryBattery Type: Lithium BatterySize:95x80x35 mmColor: pink ,red,black,whiteFeatures:The Rechargeable Voice Amplifier adopts ABS engineering plastic ... 1x Color boxWith ISO,CE,ROHS etc certificates Teacher, Guide Portable Voice Amplifier Megaphone HTY-G588 black