Usage Tips:User-Friendly Design: Adjusting the timer is as simple as rotating the central knob clockwise to set the desired duration. Its robust cover, fashioned from high-quality materials, ensures the timer's longevity while providing utmost safety during handling, making it reliable for everyday use. Versatile and Functional: With a capability of up to 60 minutes, this analog timer excels in a variety of settings - from cooking in the kitchen, focusing during study sessions, managing tasks efficiently, to timing meetings accurately, fostering productivity and discipline in various aspects of daily life. Silent Operation with Adjustable Alerts: Operates in complete silence, perfect for noise-sensitive environments such as libraries or study rooms. Customize alert volumes to your preference with options including mute, weak, or loud, and choose between a brief 3-second or extended 30-second alarm duration for added convenience. Reliable Performance and Support: Equipped with a low-battery indicator to ensure continuous accuracy, the timer requires 2 AAA batteries (not included). Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Green Material:Plastic Package Contents: 1 * Silent Visual Timer Alarm 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.