JMK-204 is made of ABS material, which is light and durable. Equipped with 1200mAh battery, it can be charged for 2 hours at a time and can be used continuously for about 2 hours, with low consumption and high efficiency. Built-in four massage modes, with three-speed graphene constant-temperature hot compress (38/40/42℃), precise temperature control, hot compress to relieve the muscles around the eyes, air bag pressing+vibration massage, playing sleep-helping music with Bluetooth connection, and relaxing your eyes in an immersive way. 180 foldable design, portable storage, curved surface to fit all kinds of face shapes, simple and convenient operation with one button, 15 minutes a day, easy to relieve eye fatigue, and it is a good eye protection partner for office study, travel and commuting.