Dongdian Development company (H.K) is registered in Hong Kong as high-tech Industrial company with HK business Dept (Head office), Dongguan production manufacturing base and Shenzhen sales Dept. Invested 50,000,000 HK dollars to establish the E.S.D photoelectric industry park with 30,000 square meter. At present, the company mainly engage in high-frequency wireless transmission products and optical products with main product of MP-3000 Mobile Phone Signal Isolator (Jammer), ED-S series Solar Illumination (alarm) production, Charger, 2.4G A/V Microwave Wireless transmission System , DC-AC Inverter, Fresh packer(Vacuum sealer)and some OEM project of customers, total in over 200 kinds of product, 50 series. Its annual sales exceed HK dollar 50 million.