The waterproof TPU bluetooth wristband activity tracker. It features a digital watch, call reminder, task alert, find phone capabilities, data tracking, fitness information sharing and time display. It can be used as a pedometer, sleep monitor, alarm, camera, video remote and more. You can Synchronize data with free mobile application for Android or Apple. It uses a rechargeable lithium battery, included (connect to computer USB port to charge). The charging cable is included and it all comes packaged in a gift box.