It works with 22 pcs neodymium magnetic massaging feelers, is good for your body; Elastic head band with adjustable buckle make more convenient wearing. The eye massager can relieve eye swollen or stress, alleviate eye fatigue, eliminate TV & computer vision syndrome, eliminate pouch, wrinkles, black rim of the eye, etc. Magnetic electric eyes massager 22pcs magnet points with 1200 high frequency magnetic field Offer 8 important points massage 9 different massaging modes 3 buttons on the top for easy controlling Prevents myopia or suspends turning into high myopia Increases blood circulation, nourishing the skin Alleviates insomnia by inducing a state of deep relaxation Helps relieve mental stress Suitable for anyone who excessively use eyes, like IT workers, writers, accountants & students alike Two ways to power this massager: 1, 2 x AAA battery (not included) 2, by the power adapter with the slot Net Weight: 130 g/ 4.59 oz