EASY TO SET. One button. Spin it then hit it. Hit it again to stop. Sooo simple If you turn fast, it goes fast. Twisting a dial is far easier than pushing buttons to set a time. Kid friendly too since all you have to do is turn the dial. It can countup and count down. Max time: 99 mins 55 secs. LARGE LED DISPLAY. Compared with other similar digital timers with low-end LCD displays in the market, our digital timer LED display screen is much larger and brighter. Large and properly contrast screen makes reading easy from any angle in both brightand dark environments. ECO SETTING. There are 2 modes of the display brightness: Constant light mode & Energy saving mode. In energy saving mode, the display will be dim after 5 seconds which increases the battery life. Power supply: 3*AAA batteries (Included). Strong Magnets & Silicone No-slip Pads -- This timer has 2 rubbered magnets on the back, it is more secure to attach to your fridge or other metal surface. Just the right magnetic level makes it stick well but also effortless to remove, allowing youto move it around easily.