Zoom Star M3 Bluetooth Smart Bracelet - 7g Weight, Rechargeable 40mah Battery | Heart Rate Monitor, Step Tracker, Call Alert, Sedentary Reminder, Anti-lost, Distance Calculation

Functions: 1.Heart Rate Monitor 2.Sedentary reminder 3.Calories 4.Time 5.Alarm 6.Anti-lost7.Distance calculation 8.Step Monitor 10.Call Alert 11.Wrist sense Pre-requisites for use 1.Your mobile phone Bluetooth version must be Bluetooth 4.0 or higher 2.IOS version must be iOS 7.1 or above 3.Android version must be Android 4.3 or above Specifications HR sensor : silicon labs Si1142 Host weight : 7g Battery type : rechargeable Li battery Battery capacity : 40mAh Data sync: Bluetooth 4.0 Working temperature : -10c to 50c Waterproof : Not for swimming or diving Standby time : 15 days & above This product uses professional Bluetooth RF signal and custom algorithm, the accuracy can reach 100 % and above Package Contents: 1 x Bluetooth Smart Bracelet 1 x User manual 1.Usb Charging Cable