... pulse-per-second repetition rate to heat the hair shaft and hair follicle, rather than destroy the oxygen organization ... beard,Lip hair, armpit hair, chest hair, back hair, arm hair, leg hair, unwanted hair and so on ;Pain-Free, Hair-Free - Comfortable Hair RemovalEffective treatment ... selectively affected, which leads to non-invasive permanent hair reduction.Advantage:1、Add hardware system of water ...