SLBC 300 - DELEGATE MICROPHONE BASE SLBC 300 is the delegate microphone base that consists of a gooseneck electret microphone with integral ring-shaped LED to indicate that the microphone is switched on. The base features a loudspeaker, microphone ON/OFF and warning buttons with luminous indicator of the “Finish” message sent by the Chairperson. The chairperson base (model SLBC 310) can be prioritised.An AASL300 interface power supply unit is needed to power the bases. • SLBC 305 built-in version for delegate • SLBC 315 built-in version for Chairman base • SLBC 300L, SLBC 310L, SLBC 305L, SLBC 315L are stations with 65 cm microphone height. The system is very easy to install: a single cable is used for cascade connection of all the bases to each other up to the power supply unit AASL300, which is then connected to the sound amplification system. The Chairman base can be connected at any point of the microphone chain.