
HCS-5381D_G. Digital IR Wireless Delegate Unit (discussion, charcoal gray panel + black base).

HCS-5381C_G. Digital IR Wireless Chairman Unit (discussion, charcoal gray panel + black base).

HCS-5381RD_G. Digital IR Wireless Delegate Unit (rectangular columnar metal microphone, discussion, charcoal gray panel + black base, with battery).

HCS-5381RC_G. Digital IR Wireless Chairman Unit (rectangular columnar metal microphone, discussion, charcoal gray panel + black base, with battery).