?USB Rechargeable?we use typc-c charging port,support charging by laptop,power bank and usb charger and so on;built-in the li-battery with 1800 mAh to support mssage you Max 6 hours. ?Upgrade Chip?Built-in smart chip, it can recognize massage movements and increase vibration intensity during massage. ?Light & Travel?This mini massage gun is only 6.85 inches size likes smartphone and weighs 1.32 pounds. It can be put in a bag, especially suitable for people who travel lightly. ?4 Massage heads? This massage gun is equipped with 4 types of massage heads,(Round head*1,Flat head*1,Ball head*1, U head*1)which are suitable for different parts of massage to meet your massage needs!. ?6 Patterns+3200 Rotating Speed?We designed 6 vibration strength, from weak to strong, and the roatting speed from 1800 up to 3200,effectively relieve your body muscle soreness.