Interface: USBHigh strength vibration frequency: 45000 times / minRated voltage: 3.7VBattery capacity: 3000mAhRated power: 2WInput voltage: 5VWaterproof grade: ipx7Material: ABSTotal weight: 213gProduct size: 24cm brush head 8cmOuter package size: 22.5 * 10 * 3.5cmPackage includes: host * 1, replacement brush head * 8, USB charging cable * 1, storage box * 142000 micro-brush/min sonic dynamic cleaning-- Electric Toothbrush drive fluid deep between your teeth and along the gum line to remove plaques and stains for exceptional cleaning , significantly whitening your teeth and improving your oral health better than a manual toothbrush.5 high-performance brushing modes--Sonic Toothbrush has 5 modes including sensitive, mild, clean, whitening, polishing and maage,suitable for different conditions of teeth and gums, so you can choose different modes according to your preferences or the dentist's recommendations.IPX 7 waterproof,can be used safely in the shower.2-minute smart timer-- The built-in 2-minute brushing timer encourages you to reach the brushing time recommended by the dentist,Sonic Electric Toothbrush pauses every 30 seconds to remind you of changing the brushing area help you effectively clean your mouth.Automatic shutdown 2 minutes later.6 hours charging lasts 180 days-- Designed to cope with modern life standards.Full of electricity, brush teeth for 2 minutes a day, and can last 180 days.sonic toothbrush compatible with every charger which have USB port , and automatically cuts off power after full charge.Package Include--1 Brush Handle , 8 DuPont brush heads use up to 2 years , 1 USB cable and operating instruction manual.