![AmbientSystem™ Microphone Keypad Extension [EST-EKB-20M]](http://en-shop.sysaway.com/cdn/shop/products/EST-EKB-20M_grande.png?v=1707147550)
Reference:
EST-EKB-20M
Microphone keypad extension. It can be connected to a fireman microphone or a zone microphone. Offers 20 additional function buttons.
