?2 & ? Login your account > choose "Your orders" > find the order ID > click "Contact seller". We promise: 2 , if you have any problems, please contact us. Buy it with Confidence. Your Home Oral Care Guard. The built-in 2-minute timer control system pulses every 30 seconds to remind you to move on to the next quadrant of your mouth. ?- Battery Life?TEETHEORY electric toothbrush features a 4-hour quick charge battery that lasts up to , far outperforming other toothbrushes on the market. you can always use this toothbrush while traveling or on a business trip. ? for Care Needs?4 high-performance modes are designed to meet all your oral care needs and help maintain a healthy mouth. , , , . mode % teeth stain removing and tartar dislodging on teeth. goes deep into the inter dental, cleans the dirt hidden in the periodontal. While ssage mode offers a gentle massage of gums. ?8 Last for 2 ?TEETHEORY rotating electric toothbrush comes with , which you can use for 2 years. You can share a toothbrush, and different color collars can be used to distinguish the toothbrush heads of different family members. You will know it's time to change the brush head. ?Professional Clean Toothbrush Heads?The Dual Clean replacement toothbrush head has for a comprehensive clean. One bristle with special soft glue section cleans exogenous coloration effectively to whiten teeth, while the other head with 60% greater density durable bristles provides deep cleaning and % teeth stain removing. Dual Action provides superior cleaning. ? Clean Plaque?For a clean that wow –removing up to % more teeth stain than a regular manual toothbrush. TEETHEORY rotating electric toothbrush goes above and beyond by effectively cleans more teeth stain compared to a regular toothbrush. This exceptional performance is attributed to its robust motor, innovative windmill design, and precision-crafted arc-cut bristles.