•Battery life: 365 days
•Bristles: Copper-free brush head
•Japanese soft wool / DuPont imported wool
•Movement vibration frequency: 50,000 times
•Function: 15 levels of inverter mode
•Appearance process: high-end pearlescent 8-layer roasting process
•Noise: 49 dB noise
•Sonic technology: Sonic cyclone instantaneous pressure technology
•(FROM SONICWAVE LABS