• Infrared wireless voice distribution system main control computer JS-1600G

• Infrared signal transmitting unit JS-1600GT

• Wireless voice receiving unit JS-1600GR

• Channel interpreter station JS-1600GI

• Centralized charging host JS-1600GP

• Embedded representative unit SDC-6700B-P of hand held conference system

• Embedded chairman unit SDC-6700A-P of hand held conference system

• Hand held conference system host SDC-600M

• Hand held conference system host SDC-6700M

• Chairman representative unit SDC-600A-B

• Chairman representative unit SDC-6700A-B

• DDS-6500M-3, master computer of digital discussion conference system