1. Low consumption and long battery life Builtin 500 mAh battery provides 68 months of use per charge. TypeC charging cable included for convenient charging from any USBC source. Lightweight, compact design suitable for indoor and outdoor use. 2. Innovative gravity sensor flip design sensitivity gravity sensing chip enables automatic timing when flipped. Flipping the timer starts timing and supports sequential countdown without presetting. The flip screen provides quick access to different timing modes. 3. Silent timing with adjustable volume Operates quietly to minimize sound during timing. Three volume levels: mute+vibration, low 7080 decibels, 90100 decibels. Flipping it to the front automatically resets the timer. 4. Time management Dimensions 4x4.4x4.6 cm; weight 47.5 g (1.67 oz). Suitable for office, work, meetings, children's activities, learning, reading, exercise, and cooking. Fashionable and portable design for easy carrying. Practical uses: in office meetings to keep track of discussion time; in classrooms or study sessions to manage study blocks; in kitchens for cooking timers.