Apply the pads to the needed area on your body, and adjust the level to your need and relax your body at any time. ?USB Charging & Enjoy Massage Everywhere?Cervical massage patch with 150mAh lithium battery, is portable, lightweight. The wireless design of the relief pad allows you to move freely. You can carry the pad everywhere you want! You can easily conceal it under your clothes. ?Easy to Carry?Electric massager cushion size 5.9 x 2.6in. A total of 5 pcs of neck cervical massager pads are available, enough to meet your replacement needs. The massage pad very suitable for people who suffer from cervical discomfort, numbness, headaches and dizziness, achieve a soothing effect, essentials for home travel.