Caresmith Spark Rechargeable Electric Toothbrush

4 HOUR CHARGE LASTS 20 DAYS: A powerful rechargeable battery that provides up to 20 days of continuous use with just a single 4-hour charge. The versatility of this toothbrush is evident in its ability to be charged using any USB power source. It is also designed with convenient features like auto shut-off technology and a low battery reminder to ensure that it is always ready for use. With these features, this toothbrush is a reliable and convenient tool for your oral hygiene routine.