Features: [ USB Rechargeable ]:USB direct charging black technology is convenient and does not require a charging cable. The wristband design allows for quick disassembly and insertion of the USB to charge, eliminating the need for cumbersome charging cables [Color flows between the wrists] The colorful strap can be matched with ergonomic design and classic hole buckle design, suitable for various wrist upgrades. It is soft, comfortable, tough, wear-resistant, sweat resistant, breathable, and can be paired with multiple colored straps [ Intelligent and thoughtful reminder]: The large screen displays incoming phone numbers, unread messages, real-time information viewing, and intelligent reminders of historical information. Simply lift your wrist to browse the content, connect your phone to take photos, and silently vibrate the alarm clock during sleep Supporting Functions: Time display, step counting, distance, sports mode support (running, cycling, skipping rope), hand up screen, long press touch, weather, dial in Chinese and English, hourly measurement, Apple Health, WeChat sports, wearing selection, Bluetooth name, sleep monitoring,Running Track APP, Call Reminder, Message Reminder, Sitting Reminder, Alarm Reminder, Do Not Disturb Mode, Find Bracelet,,etc. Product List: Bracelet * 1(black) Instruction manual * 1 Black Bracelet * 2