About this project[4 brush heads can be used for 1 year] the electric toothbrush is equipped with 4 replaced brush heads (4 brush heads in total). Each brush head is equipped with a protective cover to keep it clean! Each brush head can be used for 3 months. It is definitely an ideal choice for everyone[37000vpm high vibration] advanced high-tech rechargeable electric toothbrush, with 37000 high-speed vibrations per minute, can effectively removes stains! The cleaning effect is 10 times that of a manual toothbrush and 3 times that of an ordinary electric toothbrush. It takes 7 days for whitening teeth and 14 days for Healthys teeth.[6 personalized modes and power reminder] the electric toothbrush supports 6 modes: novice mode, gentle mode, cleaning mode, bright white mode, polishing mode and massage mode to dissolve surface stains by reversing the frequency. Massage mode provides smooth micro impact for tissue to improve blood circulation and gum health.[2-minute intelligent timer] the electric toothbrush with built-in 2-minute brushing timer can encourage you to reach the time recommended by the dentist, pause every 30 seconds, and tell you when to change the brushing area at any time, so as to encourage Healthys brushing habits. Modern toothbrush with built-in enhancements.[perfect travel companion] - it lasts 60 days after charging for 5 hours. The whole toothbrush can be safely washed with water. You can also use it safely in the shower or shower.standard:features:1. Food grade brush, anti-falling off, anti-scattering and rounding process2.6 vibration modes (novice mode, gentle mode, cleaning mode, bright white mode, polishing mode and massage mode)3. The integral valves body is IP65 waterproofs design. The valves body can withstand water washing and foaming, and can be put into water in a short time without affecting its performance.contain:Electric toothbrush x1Brush head X4Charging line x1