• Press the on-off key to start the machine, the default open mode is weak mode, the corresponding indicator lights up.
• Press and hold for 2 seconds to switch mode, the mode is switched to the strong gear, and the indicator light is also switched to the corresponding indicator light.
• Long press for 2 seconds to switch the mode to pulse gear, and the indicator light also switches to the corresponding indicator light to cycle in turn.
• Press the key to turn off the machine. The machine will turn off automatically after 2 minutes.
• When the battery of the instrument is charged, the three indicator lights flash in turn. When the battery is full, the three indicator lights will be on for a long time.