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Features: Dynamic heart rate monitoring: optical heart rate detection. Steps: Calories, calories, steps. Sleep monitoring: according to their own conditions to open sleep monitoring. Information reminder: SMS, micro message, QQ information vibration. Time display: You can check the time with your hand. Smart alarm: you can add alarm in app. Bluetooth connectivity: Use cutting-edge Bluetooth solutions. Specification: Battery capacity: 70MAH Standby time: 300 hour Input voltage: 5V Texture of material: Plastic ABS Watch strap: TPU elastomer Total length: 235mm width: 19mm screen: 0.42 Inch OLED Bluetooth: Bluetooth 4.0 Touch: Touch mode button Waterproof level: Life waterproof (Not for shower or swimming) Sensor: Low power acceleration sensor Time: OLED show 24style Charging interface: USB socket Alarm clock: cellphone in tercalate ( clock) APP: Fundo Bracelet Control type: Button control,APP control Compatability: Android 4.4 / iOS 8.0 and Above System Available Color: Black, Blue, Yellow, Red, Rose Red ,Green, White, Orange, Gray Package Included:1 x Host,1 x Strap,1 x USB Cable,1 x English User Manual Fast Shipping Pls ignore the estimated delivery date,Your packages usually arrive in 15-25 working days with valid tracking number If you want the parcel soonner, please choose expedited shipping, it will arrive in 3-5 working day Any questions please contract us,Thank you.