1.The timer has 5 preset times countdown(3 or 5 or 10 or 15 or 30 minutes) which are activated by flipping the timer over, with the number facing up. Additionally, you can easily set custom countdown time by pressing the buttons. 2.Simply flip the desk timer over to the front screen to pause the countdown. To resume the countdown, just flip it again. Of course, you can also pause or resume the timer by pressing any button. Set the sound to your desired level of volume, and choose from mute, vibration, and adjustable sound alert. 3.It's portable and fits in any pocket or bag. The timer has a magnetic base that can attach to the fridge or any steel , freeing your hands while tracking time. 4.The digital timer is a perfect tool for office, work, meetings, kids, study, reading, workout, cooking, and more. Gstandby time:24months Power supply: Battery , Type-c charging Control mode: Key and gyroscope orientation recognition Colour:Black Material:plastic Package Contents: 1x Digital clock timer 1x Data cable 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.