DHD AUDIO LT; is the largest manufacturer and exporter of multidemia speaker in China.Product range: multimedia speaker,hifi,home theatreDEHUIDA INDUSTRIAL PARK: 50,000 square meters, employees: more than 1800 DHD COMPANY: Sales & Marketing; R & D; Producing factoryQULITY & ENVIRONMENT ASSURANCE: ISO9001:2000 quality system;ISO14001:2004 environmental system;QC 080000:2005; ROHS requirement material SAFETY CERTIFICATE: FCC; CE; UL; RAM Our customers: OEM and ODM of famous brand aroud the world.dehuida#com