1. When you press the button for a few seconds, it can work; when you press it once, it will switch modes. You can also change the mode with the farthest M key.
2. You can use the "+" and "_" keys to adjust the speed.
3. The hot pressing function can be activated by pressing the right button on the remote control.
4. People with dry skin in dry weather may feel tingling. Please wipe your neck with a damp cloth or lotion to keep your neck moist.
5. Apple charging head cannot be used, but Android charging head can be used.
6. It can be used when wearing it on the neck. When you do not use it or run for 15 minutes, it will automatically shut down.