✅ 【Only 1 left】First come, first served!! ✅ Brand new and unused!! 【Upgraded Brush Head】: The fourth-generation brush head has been significantly improved based on the third generation. The number of bristles has increased from 760 to 1908. Compared to the third generation, it is more flexible and comfortable to use. Head replacement is easy; hold the main unit with one hand and the brush head with the other, then pull the brush head outward to remove it. 【Hands-Free - High Efficiency】: - Very popular when getting dressed, making breakfast, or in a hurry. People who prefer light meals can clean their teeth without using their hands, but for those who like to eat meat, it's still better to brush their teeth by moving the toothbrush back and forth. For customers who are not yet accustomed to it, we recommend switching to the traditional brush head included. 【Sonic Cleaner】: - 4 modes with one-key operation: A, Strong mode for powerful brushing; B, Medium mode for comfortable brushing; C, Low mode for comfortable brushing; D, LED blue light mode. When switching modes, it operates for 30 seconds and then automatically stops. This is the cleaning time for one session; if you feel your teeth are not clean, you can use it again. 【IPX7 Waterproof】: - The 360° automatic toothbrush adopts an IPX7 all-around waterproof design, so you can use it in the bath and shower without any problems. Before charging, wipe off the water with a towel. 【USB Charging】: - Adopts USB charging, and the full charging time is about 2 hours, and the electric toothbrush can be used for more than a week. It will automatically turn off after a full charge. Note: When charging, make sure the charger stand is dry.