- Spon Communication Technology Co., Ltd. (Changsha)
- Address:Lugu high-Tech development zone
- Nanan Unikoo Communication Equipment Co., Ltd.
- Address:
- Shantou Weida Electronic Industry Co., Ltd.
- Address:Hengshan Industrial Zone Gurao Town Chaoyang
- Ningbo Jingyi Electronic Co., Ltd.
- Address:517# maoyangshan road daqi beilun ningbo
- Shenzhen Dellking Technology Co., Ltd.
- Address:2B, No.3, Ganli 2nd Road, GanKeng, Buji,Shenzhen, China
- Guangdong Gonsin Digital Equipment Corporation
- Address:Block C, Idea Industry Park, 41 Fengxiang Road,Shunde
- Shanghai Oxlasers Electronics Co., Ltd.
- Address:beidi rd 110#
- Dongguan Ruibo Electronic Co., Ltd.
- Address:Yongsheng Industrial Zone
- Linhai Yida Electronics Co., Ltd.
- Address:No.338-1,Hongguang,Yanjiang,Linhai City,Zhejiang
- Shenzhen Spirit Electronic Co., Ltd.
- Address:Heyi
- Zhongshan Gosinggo Eletronic Co., Ltd.
- Address:1st Bulgd., East Zone Industrial Area, No.12, Zhongshan 5th Rd., East Zone,Zhongshan City
- Quanzhou Chierda Electronic Telecom Co., Ltd.
- Address:Jiangnan High-tech industrial zone
- Shenzhen Dege Technology Co., Ltd.
- Address:3/F,Building8,The 3rd Industrial Zone,Shangxing,Baoan District
- Enping Aoster Digital & Electronics Factory
- Address:No.8& 9,15th Street,Jinxiu Road,Enping Guangdong China
- Guangzhou Sky-Art Audio Electronical Device Co., Ltd.
- Address:No.16 Xixian Road industrial area , Kengtou village,Nancun town, Panyu, Guangzhou,China
- Enping Shema Electron Technology Co., Ltd.
- Address:No. 3, F Area, Foreign Capital and Private-Owned Industrial Zone
- Yilin (Ningbo) Electronics Ltd.
- Address:No.300,Wancheng Road , Yinzhou District
- Hos electronic factory
- Address:Sanwei Industrial Park Baoan District