1. 3 MHz ultrasound vibrates 3 million times per second, tightening skin and improving the absorptive capacity of skin.
2. Ion+: clean skin thoroughly: Ion-: nourish skin deeply.
3. Red, blue & green photon for rejuvenate skin.
4. Vibrating massage improves blood circulation & slims skin.
5. Grooved collar for binding cotton pad for help cleaning.