Product Features 1. Alarm function: Up to 5 alarm sets can be configured, each sounding for 60 seconds. This feature is ideal for general alarm use and especially beneficial for users who need multiple wake-up reminders. 2. Countdown timer: Supports a maximum countdown of 23 hours and 59 minutes. After countdown completion, the device sounds an alert for 60 seconds and retains memory of the set time. Press any key to stop the alarm, and the device will automatically reset to the previous countdown duration. Press the "M/S" key to start the next countdown. This function is convenient for time-sensitive environments such as telecommunications, banking, and food service industries. 3. Set multiple time intervals and countdown durations as needed. 4. Five alarm settings with 60-second sound duration each. 5. Time format: Switchable between 12-hour and 24-hour display. Button Functions 1. Set (Mode): Press and hold to enter setup mode. 2. H/M: Adjust hour value (used for time setting; flashes during countdown setup). M/S: Adjust minute value (used for seconds during countdown) and start or stop alarm or countdown. Usage Instructions Detailed instructions are included with the product. Note: As this is part of a product series, some instruction content may refer to other models. Please refer to the actual device for accurate operation. Product Details 1. Requires AAA battery (battery not included). 2. Display window size (LCD): 50mm x 28mm. Outer dimensions: 80mm x 56mm x 22mm. 3. Weight: 62 grams per unit. 4. Sound type: Standard alert tone, volume suitable for most users. Individuals who are heavy sleepers may not be awakened by this sound—purchase with caution. No returns or exchanges accepted due to sound volume preferences. 5. Includes magnets and a stand with hanging holes on the back. Can be attached to metal surfaces, placed on a desk, or hung as needed.