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	Language Distribution System \|-Wire language distribution system \|-6CH IR language distribution system \|-12CH IR language distribution system
	Fully Digital Conference System
	Digital Conference System \|-Conference system main unit \|-Conference system microphone unit
	Conference System Equipments \|-Extension power supply unit \|-Telephone coincidence
	Video Camera Auto-track System
	Pro Sound Equipments
	Voting System \|-Wire voting system \|-Wireless voting sytem
	Wire/Wirelss Conference System
	Frequency Shifter & Sythesizer
	Pro Meeting Mic
	Pro Occasion Mic
	Pro Wireless Mic
	Pro PA Amplifier