Manual mode: turn the button to mode Adjustable M/S key, press the middle button /SP to start the countdown Counting up: 1. When the display is 00: 00, short press the [SP/] key to start counting up; 2.During the timing process, short press the [SP/] key to pause/start the timing; 3. In the pause state, long press the [/SP] key to clear. Countdown settings: 1. Short press the [M/S] key to adjust the countdown time incrementally, long press the [M/S] key to quickly increase the countdown time. After the setting is completed, short press the [SP/] key to start the countdown; 2.During the timing process, short press the [SP/] key to pause/start the countdown; 3. In the pause state, long press the [SP/] key to clear; 4. After the countdown time reaches 00:00, there will be an alarm clock that lasts for one minute ("Didi Didi" LED screen lights up/the sound stops and the LED screen goes out - these two prompts are in groups of 1 second - this cycle) remind. Vibration reminder in silent mode. 5. Memory mode: After the countdown is over, press the [SP/] key again to display the set time. If you need to clear it, press and hold the /SP button. Short press to cycle the operation again. Colour:black Material:ABS Size:44 x 44 x 46mm Package Contents: 1 x 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. [Applicable Scenarios]: This flip is widely used for learning, reading, kitchen cooking, work, , fitness training, yoga, etc. It is very suitable as an Perfect time management gift for children, friends, and family members. [Compact & Rechargeable]: The measures 1.73x1.73x1.73 inches, fits in the palm of your hand, and weighs only 1.68 ounces. It's portable and fits into any pocket or bag. It's rechargeable with a lithium battery and USB-C charging port, saving you the extra cost of buying batteries and taking a step towards the environment Product operating instructions: mode: turn the button to mode Scroll 5-10-30-60 minutes upwards and the countdown will start automatically. Scroll upwards to pause. On the contrary, the screen will be downwards to clear the countdown. [Simple Design]: The most beautiful tones, cubic design. Great for home decoration. [Easy to Use]: Preset time 5/10/30/60 minutes. Just turn the so the numbered side is facing up and the will start immediately. Countdown and timing can also be customized. Pause and resume, mute, vibrate and adjustable alert volume.