- Shenzhen Wispre Co., Ltd
- Address:Room 1510, West Futian Building, ShenNan RD, Futian District, Shenzhen, China Shenzhen Guangdong 518000 China
- Digiwinner Factory Ltd
- Address:AnHua Ind ,QianJinRoad, Shenzhen Guangdong 518101 China
- Intersonic Group (HK) Co.,Ltd
- Address:410R NO.8 HongGang Garden,LuoHu District,Shenzhen city,China Shenzhen Guangdong 518001 China