Brand Name: HAOYUNMA Origin: Mainland China Power Source: Outside Charger High-concerned chemical: None Material: Fiberglass Is Batteries Included: No Certification: CE Working Principle: Ultrasound Wave Commodity Quality Certification: ce Standard Voltage: 110V（不含）-220V（不含） Power Source: EU Function: Skin Tightening Manufacturing Process: Machine Made Number of Pieces: One Unit Working Principle: Ultrasound Wave Power Source: EU Manufacturing Process: Machine Made Material: Fiberglass Function: Skin Tightening Number of Pieces: One Unit Origin: Mainland China Certification: CE Choice: yes