Functions:Sweep code one key connection, Alipay, NFC, custom dial switching (support APP push), 5 kinds of UI interface switching, address book, Bluetooth dialing call Health monitoring (heart rate, blood oxygen, blood pressure, sleep), fitness records (pedometer, distance, calories) Multiple exercise modes (outdoor walking, outdoor running, indoor walking, badminton, indoor running, outdoor cycling, indoor cycling, triathlon, hiking, elliptical, stepper, rowing machine, etc.) Reminders (message, sedentary, water, alarm), weather, WeChat exercise, breathing training, remote photo, stopwatch, find phone, wrist up, frequently used contacts, split screen (sidebar) Flashlight, bedside lamp, calendar, shortcut bar (control center), calculator; mini games, maps,App notification alerts: SMS, incoming calls, WeChat, QQ, Facebook, Twitter, Line, Whatsapp, Instagram Model No: Bluetooth headset & smart watch 2 in 1 Watch parameters: Screen size: 2.01TFT Operation mode: full screen touch + keys Resolution: 240x296 Working hours: 3-5 days, charging hours: 2H Battery: 250Amh, charging mode: magnetic charging Storage: 128Mb, Adaptation system: Apple IOS11 or above, Android 7.0 or above, Hongmeng 3.0 or above Bluetooth version/chip: Bluetooth 5.3/JL7012, heart rate model: HX3602 Headset parameters: Bluetooth version/chip: Bluetooth 5.3/AD6973D4 Charging mode: thimble charging Working hours: 4-5H color: black Material:Steel strip Package Contents: 1 x Wireless Smart Watch(Built-in 2 headphones) 1 x USB Cable 1 x English manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.