Sevencool Knee massage

Features:(1)Vibration massage & warm heat therapy(2)Multiple intensity levels adjustable(3)Boosts local circulation and metabolism around the knee joint,improving mobility and flexibility(4)Lightweight & ergonomic design(5)Cordless operation,usable anytime and anywhereSpecifications:(1)Product size: 670 * 310 mm(2)Working voltage: 3.7V(3)Input voltage: DC5V(4)Rated power: 8W(5)Battery capacity: 1200mAh/3.7V(6)Net weight: 305g(7)Massage gear: third gear(8)Temperature control: 50 ° C | 55 ° C | 60 ° C