1.for player MP3, player MP4,Charge up cellphone, Digital camera, DV vidicon, Palm computer, CD/DVD, Emergency lighting, Car ... Description:Purpose:for player MP3, player MP4,Charge up cellphone, Digital camera, DV vidicon, Palm computer, CD/DVD, Emergency lighting, ... the product. It is suitable for DVD, electronic game machine, video camera, digital camera etc. and their batteries Car power Inverter