In the state of not plugging in the ear plugs.push the power switch to the marked ON end to start the recording automatically. and at the moment. the indicating lamp lights up and goes out automatically after flashing three times. which proves to enter into the recording work state. Push the power switch to the marked OFF end to save the recording.
In the state of plugging in the ear plugs. push the power switch to the marked ON end. to play the recording file or MP3 music file. and at the moment. the indicating lamp will flash continuously.
Push the power switch to the marked OFF end. so that all work is closed. and at this moment. the power has turned off.