This multi-function fitness tracker features a 3D pedometer, using built-in sensitive, triaxial sensor enabling accurate capture of every step, along with silent flash remind feature which reminds you to move throughout the day. This is the perfect tracker for a teen interested in keeping track and achieving their health and fitness goals.  Other features include sleep monitoring designed to analyse your sleep data in order to improve sleep quality, calorie burned and distance trackers all packaged within an elastic rubber strap and a rechargeable polymer battery ensuring product longevity. Features and benefits 3D Pedometer - Built-in sensitive triaxial sensor means the tracker is able to capture every step and moment accurately. Autosave data - 24 hours step counter, save 14 days' data. Rechargeable battery - Easy to charge, rated for 300 charge cycles. Specifications 3D pedometer Silent flash remind Calorie, distance Time/date display Autosaves data Sleep monitor Battery Life: 300 times charge-discharge cycles Data memory: 24 hours step counter, save 14 days data Voltage: DC=5V via USB Display: LED Display Weight: 12.4g