Company Profile As an ISO9001 and ISO13485 quality approved company, Shenzhen Xunfengtong Electronics Co., Ltd. has become one of the leading manufacturers of medical & health care products, TENS & EMS devices, massagers, slimming belts, and other electronic products in China since 2000. All our products have acquired the CE, FCC and FDA certificates and some ones have also got the RoHS approval.