This efficient timer features a preset 25/5 minute focus/rest cycle with additional 10/50 minute options. Activation is simple—flip it to start immediately. The screen can be paused, allowing easy time management and improved work efficiency. [Pleasant Alerts, Mute Options] The cube timer offers both gentle and loud reminder sounds. Hold the UP button for 2 seconds to enable mute mode. When muted, the timer provides a silent flashing screen signal when time ends, making it ideal for classrooms and offices. [Clear Display, Backlit Progress Bar] Equipped with a large LCD screen and backlight, this visual timer ensures clear visibility in any lighting condition. The visual energy bar displays remaining time at a glance, supporting users who benefit from visual time tracking. [USB-Powered, Smart Standby] Powered by a built-in 500mAh battery with USB-C charging—no need to replace batteries. Automatically enters sleep mode after one minute of inactivity; the on/off switch helps preserve battery life. In addition to countdown functionality, it includes a counting mode—press up to start—suitable for meditation or task tracking. [Compact Cube Design, Stylish and Portable] Measuring 1.97 x 1.97 x 1.97 inches, this compact cube timer is lightweight and easy to carry. Its sleek design complements various decors, making it a functional and stylish desk accessory. Color: Black Material: ABS Package Contents: 1 x Timer Note: Light reflection and differences in display screens may cause slight variations between the color shown and the actual product. Measurement allows an error of +/- 1-3 cm.