- Guangzhou Mingjie Electron Co., Ltd.
- Address:NO.E208, 1st floor,Yiyun Square,No.79 Yongfu Road, Yuexiu District
- Yiwu Skyline Musical Instrument Co., Ltd.
- Address:Room 202, Building 2, Nian Xi Xin Cun,Yiwu
- Guangzhou Yute Electronic Firm
- Address:08 Shop ,West Second District huangsha sand Avenue NO.155 Liwan District, Guangzhou
- Wenzhou Nanfang Electro-Acoustical Equipment Factory
- Address:20-3, Juguangyuan High-Tech Industrial Zone, Wenzhou, Zhejiang Province. China
- Comfortcomms Electronics Co.,Ltd.
- Address:26D Dushi Huayuan, Futian, Xinzhou
- Beijing Biyang Sound Electronic Co., Ltd
- Address:office :Qiliqu Industrial Park, Shahe Town, Changping District, Beijing, China. Factory address : The South Outer Ring Road Technological Park,Dingxiang County,Shanxi Province,035400,China.
- Tecsis (Shenzhen) Sensors Co., Ltd.
- Address:Baolong 4th Road,B Block No.3
- Cosintel (Zhuhai) Electronics Co., Ltd.
- Address:No.8 Pingxi Road II,Nanping S&T Industrial Park,Zhuhai,China
- Shenzhen Raylam Technology Co., Ltd.
- Address:301, Bldg. 1, Shangfang Industrial Park, Xinfa Industry Zone, Xinqiao, Shajing Street, Bao'an District
- Wuhan Longan Group Co., Ltd.
- Address:No.124 Minyuan Road, Wuhan, Hubei, China
- Guangzhou Hao Xiang Auto Parts Co., Ltd.
- Address:Yuexiu District, Guangyuan East Road,NO.1 of Yunquanzhi Strt.,Bairui Building
- Foshan Sanshui Feshanm Musical Instruments Manufacturing Co., Ltd.
- Address:Room 302, No. 50, Dongjiao South Road, Liwan District, Guangzhou, Guangdong, China (Mainland)
- Shenzhen Chuangxinjie Electronics Co., Ltd.
- Address:2nd Floor,E Bldg,Sogood Industrial Park,Sanwei,Baoan Area
- Guangzhou Sanxin Electronic Co., Ltd.
- Address:
- Shenzhen Yikang Hi-Technology Co., Ltd.
- Address:Pangushi Industry Park, Laokeng Village, Kengzi Town, Longgang District
- Tri-Shine Light Industrial Products Co., Ltd.
- Address:2/F,the 25th buliding of Taohua Yuan,Baihua Yuan,Xi Jiang Bei Road
- Tianjin Yajia Amplifier Factory
- Address:5 Huojiazui Industrial District 4th Street Tiedongroad Beichen District Tianjin China
- Ouyun Electronics Factory Guangzhou (China)
- Address:No:18 Junmin East Rd Hebian yuncun Baiyun District GZ CN
- New Adin Marketing Department, Wan Shang Hui Market, Futian District, Shenzhen
- Address:Floor 5th, Building C2,NO.8, ZaoHeKeng Industrial,JiXia,Longgang district
- Shenzhen Kunhuang Technology Co., Ltd.
- Address:17/F, Shenxintaifeng bldg, No. 86, Qianjin Rd 1, Bao'an