This product work with batteries, batteries used under 300g load for about 50 minutes, power strong than rechargeable electric toothbrush on three sides, but it is enough to effectively remove plaque. Toothbrush bristles on three sides and a 45-degree angle, can achieve the effect of cleaning the teeth; High frequency vibration of 3,000 times per minute, can effectively remove the manual toothbrush is unable to clean the stubborn plaque.