Плавающие Таймер обратного отсчета времени, это настраиваемый
Floating countdown timer that stays in view while you use other apps.
The floating timer can be re-positioned by dragging it on the screen.
When the timer expires simply tap the floating timer to stop the notification or drag it to the X at the bottom of the screen.
Cancel the floating timer by draggingit onto the X.