Feature: 1. 【Premium Material】: Adopting thickened frosted surface housing design, with a knob dial and thickened dial sheet, wear resistance and with high stability. Equipped with a thickened flat lens and protective film, high transparency, high toughness, and anti-scratch, to ensure that the device can be used for a long time without damage. 2. 【Fall-proof Silicone Cover】: Drop-proof design, equipped with drop-proof frosted surface silicone cover, high tear resistance, high resilience, and thermal stability, with nice drop-proof performance of 3 meters drop without damage, ensuring reliable use in various environments. 3. 【Built-in Mute Chip】: The device has a built-in mute chip, which means that the device can maintain stable operation even in a low-power state, ensuring accurate timekeeping. Additionally, the silent design of the device makes it perfect for use in libraries, classrooms, and other public places that require a quiet environment. 4. 【Humanized Function Setting】: Innovative realization of 3 or 30 seconds reminder mode selectable function, support mute or reminder mode free switching, adapt to different occasions needs. With a low battery flashing light reminder function, convenient for users to replace the battery in time. 5. 【Professional Customized Design \u0026 Widely Used】: The timer is specially designed for children and students to learn, with a manual visual operation function, to meet the needs of classroom learning, homework management, exam training, and other scenarios. The timer not only helps to cultivate children\u0027s concept of time from childhood, helps self-discipline learning, and improves efficiency, but also small and portable, realize the combination of work and leisure, is the practical tool to improve the quality of learning. Specification: The timer has a built-in mute chip, which makes it perfect for use in libraries, classrooms, and other public places that require a quiet environment. Innovative realization of 3 or 30 seconds reminder mode selectable function, support mute or reminder mode free switching, adapt to different occasions needs. With a low battery flashing light reminder function, convenient for users to replace the battery in time. Specially designed for children and students to learn, with a manual visual operation function, to meet the needs of classroom learning, homework management, exam training, and other scenarios. It helps to cultivate children's concept of time from childhood, helps self-discipline learning, and improves efficiency, but also small and portable, realize the combination of work and leisure, is the practical tool to improve the quality of learning. Features: 【Premium Material】: Adopting thickened frosted surface housing design, with a knob dial and thickened dial sheet, wear resistance and with high stability. Equipped with a thickened flat lens and protective film, high transparency, high toughness, and anti-scratch, to ensure that the device can be used for a long time without damage. 【Fall-proof Silicone Cover】: Drop-proof design, equipped with drop-proof frosted surface silicone cover, high tear resistance, high resilience, and thermal stability, with nice drop-proof performance of 3 meters drop without damage, ensuring reliable use in various environments. 【Built-in Mute Chip】: The device has a built-in mute chip, which means that the device can maintain stable operation even in a low-power state, ensuring accurate timekeeping. Additionally, the silent design of the device makes it perfect for use in libraries, classrooms, and other public places that require a quiet environment. 【Humanized Function Setting】: Innovative realization of 3 or 30 seconds reminder mode selectable function, support mute or reminder mode free switching, adapt to different occasions needs. With a low battery flashing light reminder function, convenient for users to replace the battery in time. 【Professional Customized Design & Widely Used】: The timer is specially designed for children and students to learn, with a manual visual operation function, to meet the needs of classroom learning, homework management, exam training, and other scenarios. The timer not only helps to cultivate children's concept of time from childhood, helps self-discipline learning, and improves efficiency, but also small and portable, realize the combination of work and leisure, is the practical tool to improve the quality of learning. Specifications: Name: Time Manager Material: ABS + PC + Silicone Color: pink, black, blue (optional) Battery: 2 * AAA battery (not included) Item size: 100 * 100 * 60mm / 3.94 * 3.94 * 2.36in Item weight: 138g / 4.87ounce Package size: 105 * 105 * 64mm / 4.13 * 4.13 * 2.52in Package weight: 184g / 6.49ounce Packing List: 1 * Time Manager 1 * Guideline Package List: 1 * Time Manager 1 * Guideline