Product Features 1. Alarm function: Up to five alarm sets can be programmed, each sounding for 60 seconds. This feature is ideal for general use and especially beneficial for users who require multiple wake-up reminders. 2. Countdown timer: Supports a maximum countdown of 23 hours and 59 minutes (some units support up to 99 minutes and 57 seconds). After countdown completion, the alarm sounds for 60 seconds. Memory function automatically restores the previously set countdown time. Press any button to stop the alarm, then press the "M/S" key to restart the countdown. Designed for ease of use in time-sensitive environments such as telecommunications, banking, and food service industries. 3. Adjustable interval settings and countdown times for five programmable sets. 4. Five alarm groups with 60-second ble alerts. 5. Time format: 12/24-hour mode switchable. Button Functions 1. Set (Mode): Press and hold to enter setup mode. 2. H/M: Adjust hour value (used for countdown selection in dot mode). 3. M/S: Adjust minute or second value depending on mode; also used to start or stop alarm and countdown functions. Usage Instructions Detailed user instructions included with product. Design may vary slightly by production batch. Refer to actual device for accurate operation. Product Specifications 1. Requires AAA battery (battery not included). 2. Display window size (LCD): 50mm × 28mm. Overall dimensions: 80mm × 56mm × 22mm. 3. Weight: 62 grams per unit. 4. Sound alert: Standard beep tone. Volume is suitable for most users. Individuals who are heavy sleepers may not be awakened easily—purchase with caution. No returns or exchanges accepted due to sound volume preferences. 5. Built-in magnet and stand with hanging hole on back. Can be mounted on metal surfaces, placed on a desk, or hung vertically.