[CERTIFICATE OF PATENT] About automatic total broadcast controller [CERTIFICATE OF PATENT] About Audio volume restriction system [CERTIFICATE OF MEMBERSHIP] Korea International Trade Association (KITA) [CERTIFICATE OF LICENSE] LICENSE OF KICCA (Korea Information &Communication Contractor’s Association) [CERTIFICATE OF MEMBERSHIP] A Membership of KBTA (Korea Broadcasting Technology Association) [CERTIFICATE OF QUALITY APPROVAL] ISO 9001:2000 / KS A 9001:2001 from DAS Certification Limited [CERTIFICATE OF A PATENT ON A NEW DEVICE] About Outputting Phonetics of A Language for Fate Philosophy Machine [CERFICATE] Certificate of A Laboratory attached to Company from Korea Industrial Technology Association [CERTIFICATE OF PATENT] About Emergency Control System [CERTIFICATE OF PATENT] Audio volume restriction system [CERTIFICATE OF A SUPERIOR TECHNOLOGY COMPANY] From Korea Technology Credit guarantee Fund [CERTIFICATE] About Certificate of Innovation Business from Small and Medium Business Administration [CERTIFICATE OF A VENTURE BUSINESS] From Small and Medium Business Administration [CERTIFICATE OF REGISTER] About Register of Factory in Government [CERTIFICATE OF LICENSE] About Business License [CERTIFICATE OF APPROVAL] About QUALITY MANAGEMENT SYSTEM / ISO 9001:2000, KS A 9001:2001 [CERTIFICATE OF APPROVAL] About ENVIRONMENTAL MANAGEMENT SYSTEM / KS A 14001:2004, ISO 14001:2004 [CERTIFICATE] About CERTIFICATE OF SOUND ENGINEER from Acoustical Society of Korea [CERTIFICATE OF A SUPERIOR TECHNOLOGY COMPANY] From Korea Technology Credit guarantee Fund [CERTIFICATE] About Certificate of Innovation Business from Small and Medium Business Administration [CERTIFICATE OF A VENTURE BUSINESS] From Small and Medium Business Administration [CERTIFICATE OF REGISTER] About Register of Factory in Government [CERTIFICATE OF LICENSE] About Business License [CERTIFICATE OF APPROVAL] About QUALITY MANAGEMENT SYSTEM / ISO 9001:2000, KS A 9001:2001 [CERTIFICATE OF APPROVAL] About ENVIRONMENTAL MANAGEMENT SYSTEM / KS A 14001:2004, ISO 14001:2004 [CERTIFICATE] About CERTIFICATE OF SOUND ENGINEER from Acoustical Society of Korea [CERFICATE] Certificate of A Laboratory attached to Company from Korea Industrial Technology Association [CERTIFICATE OF PATENT] About Broadcasting Apparatus Capable using for both Main Broadcasting and Local Broadcasting [CERTIFICATE OF PATENT] About Amp system had a function of protecting for amp errors [CERTIFICATE OF PATENT] About Microphone have a function of visual alert [CERTIFICATE OF PATENT] About Audio output apparatus used the Power Line Communication and Control apparatus for it [CERTIFICATE OF PATENT] Microphone for being able to adjust the Volume automatically [CERTIFICATE OF PATENT] Management system for Public Address [CERTIFICATE OF PATENT] Public Address Controller consisted of Module Type [CERTIFICATE OF PATENT] Public Address Controller consisted of Module Type [STATEMENT] About Engineering Activity   [AWARD] BOSCH Certificate of Appreciation [AWARD] Distribution of the Year SAMSON Advances in the Installation Market2008 [AWARD] Electro-Voice BEST SALES IN Asia 2007 [AWARD] BLONDE MEDAL OF VENTURE DESIGN AWARD 2005 [AWARD] EXCELLENT GOODS OF VENTURE DESIGN AWARD 2005 [AWARD] GOOD DESIGN (GD) MARK from Korea Institute of Design Promotion [AWARD] Electro-Voice Best Sales IN Asia 2006 [AWARD] Electro-Voice OUTSTANDING ADVERTISEMENT 2006 [AWARD] Electro-Voice BIGGEST LIVE EVENT 2002 [AWARD] About Citation from Korea Federation of Small and Medium Business [AWARD] About Citation from Ministry of Culture & Tourism