Samjung Ear System Co. Ltd., established in 1992 as a leading audio, educational and linguistics lab equipment manufacturer. In 1998 we developed new [Multipurpose Wireless Headphone with Microphone]. From 2000, have exported more than 10,000 ALFA-S MODEL ...

Guangzhou Hui Ying Electronic Productions CO.,LTD is the director unit of China Entertainment Performance Material Association,in past 12 years,we manufacture seriously,strictly,really all time.Sincerity,Pragmatic,Creditable\'s enterprise ...