1 Charge =240 days use, a truly breakthrough in battery life of the electric toothbrushes in the market, it features large capacity of 2500mAH lithium battery,keep rechargeable after cycling over 300 times，build to last,its excellent battery performance allows any travel any time without battery anxiety,no charger or worry about running low on power. 8 Pack replacement brushing heads(individual package), last for 2 years (1 for 3 months, 8 for 24 months),crafted with food-grade round-tip bristles that won’t shed, its brushhead delivers a gentle yet thorough clean, protecting your tooth enamel and gums. 3 classic cleaning modes: select from—CLEAN, WHITE and CARE, customize your brushing experience. Whether you need gentle care, or a whitening boost, this amazing rechargeable electronic toothbrush offers a personalized solution for every oral care need. The mode doesn't mean more is better, all daily needs can be solved by the 3 classic options. Super easy to use,set your own brushing mode when first use and start working. It keeps the memory setting from the last time. There's no need to go through every STEP to start or stop it. Built in smart timer with quiet motor: the sonic toothbrush has a 2-minutes timer with 30-second intervals that ensures you brush for the optimal time, promoting the best dental care habits recommended by oral professionals. Plus, the rechargeable toothbrush equips a quiet motor that operates at a comfortable brushing moment. Money back within 180 days once the battery does not work any more, or get to us for a new replacement at no charge.( 180 days must be valid from the CARE working mode) Friendly to oral care, with its 31,000 vibrations per minute, this frequency of HYCHIKA sonic toothbrush is suggested by dentists as a high recommended suitable electric toothbrush for the human mouth, providing a refreshing oral care while not irritating and insensitive, and can be accepted by most people, including those sensitive gums. The package includes: 1 HYCHIKA sonic electric toothbrush; 8 High-end toothbrush heads ; 1 USB-Type C charging cable; 1 Instruction Manual. How can I get the new replacement brushheads ? Get to the ASIN: B0F91W95PM,or search HYCHIKA Electric toothbrush replacement head from Amazon.com. Experience unparalleled dental hygiene with our advanced electric toothbrush, designed to last an incredible 240 days on a single charge with its 2500mAh lithium battery. With a powerful motor that delivers 31,000 vibrations per minute, this toothbrush ensures a thorough clean every time. Choose from 3 classic cleaning modes—Clean, White, and Care—to suit your specific dental needs. Keep your oral care routine fresh with our 8-pack replacement brushing heads. Enjoy a built-in timer to ensure you brush for the dentist-recommended 2 minutes-30s mode, and a quiet motor that makes your brushing experience more pleasant. Elevate your oral care game with this high-performance, long-lasting t oothbrush.