One-touch operating modeOpen long press function key1, open the manual2, there is a QR code on the manual.3, scan QR code download APP4, open the bluetooth connection watchIP67 waterproofCharging voltage 5 V current 1A to 2.1 A charging time 2 hoursAbout 5 to 7 days standby timeAll-day activity tracking: steps, calories burned, mileage and heart rate, blood pressure, sleep。Smart reminder: call reminder, SMS push, sedentary reminderMore features: mobile search, remote control camera shooting, stopwatch.Continuous Heart Rate Monitor: Continuous, automatic heart rate tracking of your wrists every second.Bluetooth 4.0, compatible with Android 4.1 and above, iOS 8.0 and above.Bracelet push support language: Chinese and EnglishAPP support language Chinese, English, Japanese, Turkish, Spanish, German, Russian, Finnish, Arabic, French, Malay, Indonesian, Korean, PortuguesePackage includedHost, charger, wrist strap, manual, box Note:It's a QR code on manual,The cell phone needs to download the APP,The cell phone opens the positioning function,The Bluetooth connection watch is open in the APP, the data will be synchronized, if you have any questions, you can always contact us, we will help you solve the problem