Product Description:--- Bracelet built-in NFC chip supports read and write, can make their own business cards, use Auto Link opens--- The first double-sided USB charging technology, so charging more peace of mind, 15 minutes charging a new power management system can be used normally for 15 days, 100 days or more standby--- Using a fine-grade aviation aluminum brushed surface. Colorful and stable male-stage oxidation process 10,000 rpm high-speed high-precision CNC fine mirror edging--- DIAOG chip stabilized power accurate record step algorithm to experience intelligent life medical grade static error. Dynamic real-time monitoring of heart rate, NFC business cards, unlock the encryption. Custom features, aerospace aluminum body brushed surface, smoothing the light knot border treatmentDetails--- The main chip: Didlog14580, Bluetooth 4.0BLE--- The capacitive touch screen control--- Unique USB charging design, double-sided USB plug and play, portable (without cable)--- Waterproof grade: IP67--- Display: 0.96 ‘ OLED--- Caller ID contact name, message content display: SMS /QQ /micro-channel--- Self artifact, looking for a mobile phone--- Heart rate tests, steps from the real-time display--- The time display function, high sensitivity built-in motor--- APP Support: Android, iOS--- Sleep monitoring (sleep time, sleep quality)--- The lithium-ion battery: 70mAH, working time: 15 days (longer battery life)--- USB charge to full power 45 minutes (use a 5V, 1A regular charger)--- Support languages: Chinese, English,Russian, French, Spanish, TurkeyPackage include:1 x Smart Bracelet 1 x User Manual.