● Chairman unit has the priority function to close all speaking unit.

● Chairman unit has the function to initiate and end attendance sign.

● Chairman unit can initiate *-key vote (for / abstentions / against), or end the voting.

● *6charactersx2rows display provides the attendance results and voting results show.

● Support English show.

● Low stroke touch key, no stuck key, silent.

● Support three vote modes:
　　1) voting: for, abstain from / against.
　　2) election / survey modes: 1/2/3/4/5.
　　3) response mode, evaluation methods: *-、-、0、+、++.

● Capacitor heart type direction microphone, with double color indicator.

● Support the sign function.

● Support *1*1 cable simultaneous interpretation.