1,DC high frequency portable dental x-ray unit 2,small,light,nearly no radiation. ... surgery FEATURES: The device is DC high frequency portable dental x-ray unit, small, light and nearly no radiation.There ... its life.It can be connected with intra-oral digital x-ray imaging system.SPECIFICATIONS : Tube Voltage: 60kVTube Current: 1mAExposure ... size: 220×240×275(mm) DXM-60P Portable Dental X-ray Unit