charging hand-held neck, waist and shoulder electric multi-function

Color Classification: Black (Charged Wireless), Blue (Charged Wireless), Black (Cable Plug-in) Massage Contacts: 4 Control mode: computerized Stall: stepless speed change Contact Types: Convex Round Massage Head, Acupuncture Type Massage Head, U Type Massage Head, Round Massage Head Classification of physiotherapy methods: infrared ray