The EH-9100U connects directly through a USB adapter to a PC allowing on-the-fly recording of a customer's hair condition. the EH-900U shows follicular property and frequent pathological change such as pore obstruction,overactive secretion of sebum etc. that you are unable to see with the naked eye or other lenses/magnifying systems. The EH-9100U  is the perfect tool to visually communicate the condition of a customer's hair, scalp.