Perfect Design - The wireless adjustable electric shoulder rest is ergonomically designed for extended comfort. Made of high quality neoprene material with overheat protection design, it is guaranteed to be comfortable and safe for the shoulder neck. It is a perfect gift for yourself and your loved ones. Fit for men and women - Shoulder support for men and women, one size: chest circumference 27-55 inches, arm circumference 9-16 inches. It will not immobilize your shoulder, you can still have the most of your range of motion (depending on how tight you adjust it). Please do not hesitate to contact us if you have any problem with using our product. We will do our best to solve it. Cordless massager - Our shoulder massager supports housework, office use and relaxing use. You can enjoy this product anywhere you like. Vibration and heat combined - enjoy a vibration massage and heat alone or together as needed. Our heated shoulder pads have 3 vibration modes and 3 heating modes. Simply long press the button to turn it on or off, and briefly press to change the mode. Red light is strong mode, blue light is medium mode, green light is low mode. Please fully charge it when using it for the first time. ELECTRIC SHOULDER HEATING PAD - Our electric shoulder heating pads are suitable for left and right shoulder. There are 3 heating and vibration modes. If you do not feel heat or massage during use, adjust the straps without immobilising your shoulders so you can maintain a certain range of motion.