􂍥Master (Stand-Alone) or Slave mode
􂍥Mix-minus Technology
􂍥1~10 Chairman units can be used in one same group category
􂍥1~99 Group setting, 4 Grouping at the same room
􂍥0~30 Steps microphone sensitivity
􂍥3~40min or Free time of the microphone NO
􂍥Automatic power off control follows the master unit
􂍥LCD & back lighting display
􂍥Battery & Signal Indicator
􂍥Priority button
􂍥Voting, Speaker volume buttons
􂍥Built-in Speaker, 3.5mm Stereo headphone out
􂍥48~60 hours system ON with one full charged battery approximately