How to use: 1.Open the headphone plug and insert the headphone plug into the headphone jack. 2. Turn the height adjustment knob counterclockwise to the highest position. Turn the front and rear adjustment knobs to the maximum position, wear the product on your head, adjust the front and rear adjustment knobs to the most comfortable position; Adjust the upper head height adjustment knob until you feel moderate head pressure. 3. Keep touching the power button with your finger for 2 seconds to turn on the product; voice transmission "automatic mode". After 2 seconds, play the music that was played when the machine was turned off last time. 4.Touch the power button for less than 1 second to switch massage mode. Press the key once and the music will pause for 2 seconds and the current mode will be voiced. When the current mode has music function, the music will automatically resume. 6. You can also use the wireless remote to control the temperature, mode, music, etc. Specifications: Type of article: electric head massager Material: ABS Host built-in battery: 2000mAH lithium battery Remote control battery: 1 x button battery (not included) Remote control battery model: CR2032 Package list: 1 x head massager 1 headset 2 headphone covers 1 USB cable 1 manual 1 remote control