JYK(Shenzhen) Technology Co., Ltd is a professional factory with 10 years experience,which is specialized in the breathing trainer, Headphones and Eye massager etc. All of our goods comply with international quality standards:CE/EN71/MSDS/UN38.3/FCC/UL2272. Based on strong RD team and QC Team to develop the products and control the quality. We have stable quality, competitive price OEM&ODM service and experienced intermnational trade team exports to Europe, North America, Australia, Middle East and South Asia. Warmly welcome to visit our factory. We look forward to build good relationship with you sincerely!