RF Ic card function Tooth whitening machine in case Almost of parts are aluminum Wheel base can be disassemble in one minute tooth whitening machine, dental bleaching light ,teeth whitening light ,spa or dental clinic lamp, led whitening light in caseProduct features1.RF IC card control(MODEL1:RF chip with 15MINUTES ANYTIEM USING MODEL2:FR chip with 20MINUTES ONE TIME USING)2.Easy to read and use ...