Pan Xian, R&D director of Geshijian .
2004 to 2011, in Johnson & Johnson Group's R&D team,
he was mainly responsible for the structural design of medical devices, such as minimally invasive gastrointestinal cutting surgical instruments.
2011 -2016, Establish the independent motorcycle lamp brand BOSMAA.
2016-2019, Designed the circuit and structure of Hyperice(one America Brand of Masssage Gun). And also Designed many massage guns for other brands.
2020, He established the brand Crossgun .