Features * High efficiency goose pipe design, adjust angle at random, convenient for use. * Combination of high power BLUE led. *According to patient conditions, setup the "low, medium, high" strength of three different types of whitening. * Tunable bleaching time with microprocessor-controlled timer presets. * Digital indicator with audio feedback. * Smart auto-select power: 100 to 240 Volts AC.50/60 Hz for global use. * High Speed Multi-Arch Teeth Whitening System. * Small base size design, suitable use in dental clinic. * High Uniformity of Light Output. * High sensitive infrared remote control setting function. * Enclosed disposible sheath, prevent cross- infection, clean and convenient, let patient feel relieved. * 5 minute counting with memory, the longest whitening time is 30 minute.