<b>RHM Karaoke Machine for Kids&Adult,2 Wireless Microphones,Rechargeable Battery Speaker,Portable PA Speaker System with Bluetooth/AUX/USB/SD for Home,Party,Wedding,Picnic Outdoors&Indoors Activities</b> </br>Peak power: 500W </br> Distortion: 0.2% </br>S/N Ratio: 80db </br> Opearation Voltage: DC 15V 4A </br> Frequency Response: 35Hz-20KHz </br>Output Power: 30Wx1+15Wx2 </br>Speaker driver: 4"*1+3"*2 </br>Built-in Battery: 11.1V,4400mah </br> Dimension(WxHxD): 360x180x205mm </br></br> <b>Includes：</b> </br>1 x Karaoke Machine </br>2 x Wireless Microphone </br>1 x Adapter </br>1 x Power Cable </br> 1 x USB Cable </br> 1 x Audio Line </br>User Guide