Personal Vibrating Alarm Clock Waterproof Silent Vibration Watch with Countdown for Office School - High quality: This reminder clock with vibration alarm clock has a stylish and soft silicone strap that is lightweight, durable and hypoallergenic. The movement is made of ABS + PC, is lightweight and does not strain your wrist too much. The bright screen provides a comfortable touch feeling. This is a unique gift for your loved ones, friends or yourself. - Quiet alarm clock with strong vibration: Up to 6 individual vibration alarms, no daily on/off required, quiet, strong vibration does not disturb others, perfect for discreet, continuous reminders such as toilet training, going to the toilet, doing homework, taking medication, drinking water, getting up, exercising, creating a daily plan or a prayer or a routine. - Multifunctional: Time/Date/Week Display, Battery, 6 groups of alarm settings, 12/24 hour format, cycle timing, temperature measurement, etc. They are all relatively practical features. Not only for waking up, but also for meticulous memories throughout the day. Set it as a silent reminder for important meetings or medications. - Rechargeable and waterproof: Waterproof and sweat-proof design, no need to worry about showering. The long-lasting rechargeable battery lasts 30 days on a full charge, so you can enjoy an uninterrupted, worry-free morning without having to constantly replace batteries. In addition to long battery life, it can be quickly charged anytime and anywhere via a USB charging port. - Easy to use: easy to set up, no connection to Bluetooth or a mobile app required, simply program on the bracelet, power off memory function, save all alarm settings, you don't have to worry about resetting when the device is off. The pocket size makes it easy to take anywhere and fits easily in a shirt pocket or bag. Material: silicone+ABS Battery capacity: 75mAh 3.7V Operating environment: -10~50 C Waterproof grade: IPX5 Charging voltage: DC=5V (built-in USB can be directly plugged into the power bank for charging) Function: 1. Body temperature measurement: The body temperature is automatically measured throughout the day. When the temperature is measured to be above 37.3 , the wristband will automatically alert and remind, 2. Time and date can be set, 3. Vibration alarm clock, can set up to 6 sets of alarms 4. Timing stopwatch 5. Fully charge and work for about 30 days.