Bothhand Enterprise Inc. was founded in 1992, and specialize in production and Research & Development of DC/DC converters, pulse transformer, filters, LAN-Components, Broadband network component (ADSL,VDSL etc), Switching Power Supplies (SMPS), Piezoelectric transformer, Inverter, Ionizer, Power over Ethernet, Wireless Devices, and TA/AL Conductive Polymer Capacitor.