You need the microphone in the rack drawer. To open the rack, use the lock combination received during training. The microphone and transmitter are kept in a black pouch in the drawer. You need to turn the transmitter on, and fasten on both the transmitter and the microphone. Lock up the rack.
Rotate combination lock to display random numbers.
Decoding This room is equipped with both. To open the rack, use the lock combination received during training. The Assistive-Listening system consists of a transmitter and headsets with adjustable volume. The transmitter is located on the rack, and is always turned on. Students can borrow the headsets to reinforce the sound signal according to their needs.