Background Music / Controls and Modules (45x45mm)
- The recording of messages can be carried out from the internal microphone, from an external microphone (dynamic or Electret with incorporated power supply) or from an outside audio source at line level.
- Rear switch to select if a notice signal should be generated before reproducing the message.
- Rear potentiometer to adjust output level.
- Relay that stays closed during the reproduction of a message.