Mini Portable EMS Neck Massagers Electric Neck Stretcher For Cervical Muscle Pain Relief And Shoulder Relaxation Massagers Patch Specification: Product Name:Magic paste Voltage:3.7V How to use:A-F (8 modes) 19 gears Frequency:1-100HZ Working Hours: 15 minutes Output: 35mA maximum Battery Capacity:200mAH Frequency: 1~100Hz Features: * 100% brand and high quality. * Massagers part: neck / back / waist / hip / leg and other parts. * 8 modes 19 Levels: There are different inity levels for each mode (Tapping, Massagers, Massagers, squeezing, tapping, kneading, training, shaping) Users can choose different inities according individual needs. * Helps relieving tiredness, relaxing muscles, improving blood circulation and burning fat. * Unlike the existing general massaging devices that only rub the outside of the muscles, Massagers uses to stimulate the inside of the muscles as well, to enhance the blood circulation effectively for quick recovery from fatigue. * Small size,lightweight,easy to carry and storage. Instructions: 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. Note: the patch is a consumable, because the patch is not sticky, people with neutral skin need to change the patch after about 20 times, and people with oily skin need to change the patch after more than ten times.