NEXT-SHINE Fitness Tracker Bluetooth Fitness Activity Smart Healthy Tracker with Pedometer,Calorie Counter,Message Alarm,Sleeping Monitor Caller ID and sedentariness vibration remind + Camera remote control(via tracker to control your device ) + Anti-lost(via trcker to find your device) When moving or have activies,the tracker will track your steps + calorie + distance + sleeping,to help you keep health. When sleep,it can monitor your sleep quality. Only supports the mobile devices of IOS 7.0 or above, Android 4.3 or above and Bluetooth 4.0 or above Built-in charge plug,no charge line, charging with USB port(computer,power bank or USB adapter )