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 rhm <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