Product name: Head massager Product Model: HD-01 Product size: 72*1*13.5cm/28.35*0.39*5.31 inches Battery capacity: 2000mAh Rated voltage: 5V Operating voltage: 3.7V Rated power: 5W Technique upgrade: imitation human hand therapy "kneading, pressing, pushing, grasping" massage techniques such as old technicians kneading for you, away from brain fatigue, kneading headache pressure. 6 area massage: Perform area massage, knead the tired points, decompress and release, happy mood. Wrap hot compress: graphene fast heat, focus on hot compress around the eye, easy to disperse the fatigue of the whole day. Four modes: Unlock variety and comfort. Mode 1 Gently helps you sleep, empty your mind, and let you fall asleep easily; Mode 2 is invigorating, allowing you to wake up your mind between work; Mode 3 travel pressure relief, suitable for business travel to reduce fatigue; Mode 4 Rhythm rhythm, free decompression happy mood. Eye visual hole design: double row hollow brim design can block the light, but also can detect the dynamic around at any time, add a sense of security. Low noise operation: Upgrade noise reduction design, reduce deflating noise, do not disturb others, gently coax sleep, sleep easier.