Rechargeable design: The massager takes about 3 hours to fully charge and can be used for approximately 1 week. We recommend that you use it for 15 minutes every day (the machine will automatically shut down after 15 minutes). Attention: Please fully charge before first use.Easy to use: Long press the power button to turn on/off the machine; Short press to switch between 5 modes; Double click the button to turn on/off music. Press the temperature button to switch the temperature level, and press the volume button to adjust the volume level. Ideal birthday gift for both men and women.Special Gifts: Eye Massager is a warm and relaxing gift for mothers, a graduation gift for friends, a gift choice for boyfriends/girlfriends/nurses/bridesmaids/employees, and a retirement gift for women.180 Foldable, Adjustable Size: The electric eye massager can be folded into a smaller size, allowing you to take it to the office, airplane, or travel. In addition, the length of the headband can be easily adjusted to fit most faces. If you feel that the headband is too tight or too loose, please adjust the headband to find the appropriate length.Note: 1. Eye massager produces normal noise