... Device:laptop,MP3,PMP,CD,Portable DVD,Portabe Printer,Portable TV,DigitalCamera,PSP,PMP,ND,,Portable scanner,Portable Projection Instrument, Portable Acounstics,Transmitter-receiver,Video Tape ... ,DC electric Fans,Lantern,Caution Light,Fishing Light.5.Portable Industrial Device and Portable Medical Treatment Device:Industrial Computer,X-ray Machine,etc.