Feature 1、3 REMINDER VOLUMES: Visual timer designed in mute, high volume, low volume 3 reminder options. Just choose the timer alarm mode for different scenes. For example, you can choose Mute when you are reading or studying in public places such as libraries and classrooms. 2、ADJUSTABLE BRIGHTNESS AND QUIET: This visual timer supports brightness settings, independent brightness adjustment buttons, 2 gears brightness adjustable, more flexible to use. No ticking sound, won't disturb children. 3、MAGNETIC BACK AND STAND DESIGN: The visual countdown timer is equipped with a magnetic design on the back, which can be fixed on iron or metal surfaces, and a stand on the back, which can be opened on the desktop. 4、TIME MANAGEMENT: Using a visual timer for kids is a practical and effective way to help maximize productivity. By breaking down tasks into manageable chunks of time, they can set realistic goals for each time limited activity and prioritize accordingly. 5、EASY TO USE: Kids can certainly focus on their reading, homework, games and more. Turn on the digital timer with the power button, rotate the wheel button to set a countdown or press the wheel button to set a timed countdown, select alarm mode. Item Type: Visual Timer Material: ABS Size: Approx. 10 x 3.5 x 9cm / 3.9 x 1.4 x 3.5in Time Range: 11 Hours 59 Minutes 59 Seconds Volume Levels: 3 (Mute, Low, Loud) Brightness Levels: 2 Battery: Lithium Battery 1200mAh (Built in) Gross Weight: Approx. 246g / 8.7oz Package List 1 x Visual Timer1 x USB Cable 1 x Manual Note Manual measurement, please allow some errors.