• Water-resistant TPU Bluetooth wristband activity tracker. • Digital watch features call reminder, task alert, find phone capabilities, data tracking, fitness information sharing and time display. • Multi-function tracker can be used as a pedometer, sleep monitor, alarm, camera, video remote and more. • Synchronize data with free mobile application for Android or Apple. • Follow instructions for proper setup and use. • Uses rechargeable Lithium-Polymer battery, 60mA/3.7V, included (connect to computer USB port to charge). • Item must be charged prior to first use; charge time varies (minimum 1 hour). Approx. playback time 5 days, depending on use.