Foshan ShuangMuSanLin technology Co., Ltd. founded in 2009 which located in Shenzhen, China. And our branch company VMV Technology (HK) Company Limited registered in HK in 2013. Our company is specialized in the audio DAC, stereo headphone amplifier, power amplifier, and with own R＆D, manufacturing and marketing team. S.M.S.L has established a comprehensive sales network and our sales network covers 33 cities in domestic; we established a strategic partnership with Japan, Britain, Germany, Portugal, Singapore, and other countries, our products are exported to more than 30 countries worldwide and are highly satisfied by customers. We follow the rules of "quality-based, technology-guidance, customer central", strictly execute the Electronics Industry rules (EICC), and passed the CCC, BQB, MFi, CE, FCC, RoHS, CE-EMC, CE-LVD, WEEE certification. Our company has about 10 middle and senior engineers with rich experience in product development and professional management to ensure each product is qualified and works excellent. Foshan ShuangMuSanLin technology Co., Ltd. is looking forward to co-operating with you to build a prosperous future and to realize the concept of consensus, Marketing co-governance, mutually beneficial, win-win future!