Step into the new age of solace with Migraine Relief Massager! Special acupressure points enlarge blood capillaries to release more oxygen in the brain and give you peace of mind. Literally. If you are staring at computer screens, reading over files, or even trying to fall asleep, you can use the Eye Care Massager for help. Operated by 2 AAA batteries (batteries not included). Function: 1. Promote blood circulation to relieve eye fatigue and tension; 2. Prevent myopia or delay the progression of shortsightedness; 3. Keep insomnia sufferer easy to have light sleep; 4. Prevent and relieve eye bags, dark circles and small wrinkles; 5. Help the aged to delay the process of presbyopia Additional Details ------------------------------ Product description: Step into the new age of solace with Migraine Relief Massager! Special acupressure points enlarge blood capillaries to release more oxygen in the brain and give you peace of mind. Literally. If you are staring at computer screens, reading over files, or even trying to fall asleep, you can use the Eye Care Massager for help. Operated by 2 AAA batteries (batteries not included). Function: 1. Promote blood circulation to relieve eye fatigue and tension; 2. Prevent myopia or delay the progression of shortsightedness; 3. Keep insomnia sufferer easy to have light sleep; 4. Prevent and relieve eye bags, dark circles and small wrinkles; 5. Help the aged to delay the process of presbyopia