Brand Name: Joverisher Hand Instrument: No Voltage: ＜50V AC Electronic: Yes Power Supply: Battery powered Is Batteries Included: Yes Origin: Mainland China Material: ABS & TPR Item Type: Massage & Relaxation Certification: CE Model Number: Electric Neck Massager Size: Small Application: BODY function 1: EMS Neck Massager function 2: Electric Neck Massager,Massage Patch function 3: Stimulator Pain Relief,Massage Stimulator function 4: Portable neck massage,Electric Neck pads function 5: Cervical Massager,Body Massager function 6: Mat Replacement,Wireless function 7: EMS Neck Stretcher,LCD Display function 8: Portable Massage,low frequency pulse function 9: muscle massager,Massager for neck,muscle massagers function 10: Low frequency massager,back and neck massager,Electric massage function 11: Massage machine,cervical neck massager,mini massager function 12: Neck and back massager,patches muscle pain and joints,massage device,neck and cervical massager function 13: electric muscle stimulator,back massager function 14: neck releaser,neck massage device,neck massage instrument function 15: Cervical massager,beauty health,ems muscle stimulator function 16: ems low frequency massager,massager for neck and back function 17: pain patch,neck massager and neck,Calf massager function 18: Electrical muscle stimulator,Portable massager,shoulder massager function 19: low frequency neck massager,relaxation treatment,body massager function 20: neck pain relief,neck massager for pain relief Choice: yes