- High quality: This reminder clock with vibration alarm features a stylish and soft silicone strap that is lightweight, durable, and hypoallergenic. The case is made of ABS + PC material, lightweight and comfortable to wear. The bright screen provides a comfortable touch experience. This makes it a thoughtful gift for loved ones, friends, or yourself.- Quiet alarm with strong vibration: Supports up to 6 individual vibration alarms, no daily on/off required. The silent, strong vibration does not disturb others, making it ideal for discreet reminders such as bathroom breaks, homework, medication, hydration, waking up, exercise, daily planning, or routine tracking.- Multifunctional: Displays time, date, and day of the week. Features include battery indicator, 6 alarm groups, 12/24-hour format, countdown timer, temperature measurement, and more. These practical functions support all-day reminders, including silent alerts for important meetings or medication schedules.- Rechargeable and waterproof: Designed to be sweat-resistant and water-resistant (IPX5 rating), suitable for everyday use including handwashing or rain exposure. The built-in rechargeable battery lasts up to 30 days on a full charge, eliminating the need for frequent battery replacements. Charges quickly and conveniently via USB port, compatible with power banks and standard USB chargers.- Easy to use: Simple setup without requiring Bluetooth or mobile app connection. All settings are programmed directly on the device. Power-off memory function retains all alarm settings even when powered off. Compact size allows easy portability and can be carried in a shirt pocket or bag.Material: Silicone + ABS Battery capacity: 75mAh 3.7V Operating environment: -10C to 50C Waterproof rating: IPX5 Charging voltage: DC 5V (built-in USB connector, can be charged directly from a power bank)Functions: 1. Temperature measurement: Automatically monitors body temperature throughout the day. When temperature reaches or exceeds 37.3C, the device vibrates to alert the user. 2. Time and date display with setting capability 3. Vibration alarm with support for up to 6 alarm groups 4. Stopwatch and countdown timer 5. Fully charged battery provides approximately 30 days of operation