Instructions for the first user : When using this equipment for the first time, The smart bracelet battery has no power ,please take out the device , it will automatically turn on with the charger .And the device will automatically update the time and data when binding the APP. Note : 1.the charging clip caught on the host of the smart bracelet during the charging ,the palping foot on the charging lip align to the palping foot on the main body . 2.the screen will have light and in clock screen when touch button be clicked . single click can switch different pages .the screen will out of light when no action happened after 6 seconds. 3.The light will on when wrist turnover on condition that wrist turnover is on in APP. Main Features: - Bluetooth Synchronization With Bluetooth 4.0, this smart bracelet is available for smartphones with Bluetooth function - Professional Heart Rate Detection Whether you are resting or doing sports, detect your heart rate accurately - Intelligent Anti-lost Watch will send an alarm after leaving the mobile phone in a certain distance, no need to worry about losing your phone - Remote Camera Control your smartphone to take photos, catching every moment you want - Sport Monitor This smart bracelet can record steps, calories and distance, so you can know your sports data, adjust your exercise program and live a healthier life - Sleep Monitor Accurately monitor total effective sleeping time and motion time every night, helping you develop good living habits - Sedentary Reminder Develop scientific habits and effectively resist sub-health - APP supports languages: English, Japanese, Simplified Chinese, Traditional Chinese, French, German, Russian, Romanian - The watch not supports languages: Arabic, Thai Note: 1. Be compatible with Android ( Android 4.4 or above ); for iPhone ( iOS 8.0 or above ) 2. IP65 waterproof means that stepping depth doesn't exceed one meter and steeping time doesn't exceed 30 minutes Specifications: Bluetooth Version: Bluetooth 4.0 People: Female table,Male table Waterproof Rating: IP65 Screen: Yes Screen type: OLED Compatible OS: Android,IOS Compatability: Android 4.4 / iOS 8.0 and above system Battery Type: Lithium Polymer Battery Battery Capacity: 80mAh Power: Built-in Battery Standby