Xiaomi Mi Electric Toothbrush T700 BHR5575GL OVERVIEW Multiple power adjustment with high-frequency vibration The bristles are Du - Pont Staclean Brush wire* | LED smart display Personalized Settings with App | Long battery life and flexible charging Disclaimer : * Outer bristles diameter: 5mil (0.127 mm) with a tolerance of 0.03 mm; middle bristle diameter: 6mil (0.152mm) with a tolerance of 0.03 mm. * The number of bristles are more than 2 times of those of Xiaomi Sonic Electric Toothbrush T500. * Bass brushing method is a scientific method recommended by the American Dental Association. * The bristle passed the test under the standards in accordance to the U.S. FDA (FDA 21 CFR 177.1020/FDA 21 CFR 177.1500/FDA 21 CFR 180.22 & FDA 21 CFR 180.32) standards. Test report No. EY201216042CC002; Test conducted by EMTEK Guangzhou Laboratory. * The toothbrush head material passed the test under the standards in accordance to the U.S. FDA (FDA 21 CFR 180.32) standards. Test report No. (6621) 261-0972; Test conducted by Bureau Veritas Consumer Products Services Shanghai Co., Ltd. * The noise is not higher than 55 d - B (the tested sites are distributed on the hemispherical envelope surface, and the testing radius is 1m). Noise test report code: WTS2021-26821. Tested by: CVC Testing Technology Co.,Ltd. *The nominal rated capacity of the battery is 1,050m - Ah, and all the measured values are higher than 1050m - Ah. Battery capacity test report code: EED31M002933C. Tested by: Centre Testing International Co., Ltd. (CTI). * Under the default force of the three modes, if the toothbrush is used for 2 minutes each time and twice a day, the battery lift can be more than 24 days. The test data is from the internal laboratory of Wuxi Qinghe - Xiaobei Technology Co., Ltd. * Under soft mode and the fastest speed (the fastest speed can be set in APP), the motor speed can reach 39,600 times per minute, and the tolerance is ±990 times per minute. The results may vary in different environments or using different measurement methods. * PX7 waterproof rating means that the equipment will not be damaged in case of being soaked in 1m underwater for 30 minutes; However, the high-temperature shower water or bath water would produce a large amount of water vapor and the water molecules may enter the device, so please