Portable Mini Electric Neck Massagers Cervical Massagers Stimulator Pain Relief Health Care Pain Relief Intelligent Massagers Patch Small size,lightweight,easy to carry and storage. 8 modes /19 gears adjustable,meet different needs. Massagers part: neck / back / waist / hip / leg and other parts Massagers technique: shiatsu, kneading, tapping, Massagers Specification: Working Hours: 15 minutes Usage mode: 8 modes Frequency: 1~100Hz How To Use: 1.Twist the host with the gel patch. 2.Uncover the transparent film on the gel patch. 3.Attach the instrument to the area where you need to Massagers. 4.Press the + button to turn it on. 5.Press the M button to select the desired mode. 6.Adjust to the Massagers inity that suits you. Continue to press + to increase the inity and - to decrease the inity.