Horn-speakers are fitiyed with fireproof cable according to UNI 9795 2010 (length 80 cm). The fixing system makes mounting easy and enables the speaker unit to be turned in the best direction. These speaker units have been developed specifically for use in emergency and evacuation systems (VES). These horns are two-way speaker units featuring high efficiency, an extensive response range and good power resistance. The design and materials used enable it to be employed for outdoor applications up to class of protection IP44 at the most. The special shape of these speakers gives rise to practically constant and controlled coverage of the audio spectrum reproduced, with particularly high sensitivity.