The LEX L11 is a combination of traditional push-to-talk button communication and a generously dimensioned touchscreen, which can run via app and multimedia functions. In order to make use of the available radio frequency system, it can be linked to another radio device. In undercover operation it can also control a covert radio. The functions make operation for the user from the public security sector as easy and effective as possible, for example by large and intuitively controllable buttons.