The C86/20-2EN vandal-proof sound projectors, characterised by an aluminium alloy housing and steel front grille, are fittied with fi reproof cable according to UNI 9795 2010 (length 80 cm). These speaker units have been developed specifically for use in emergency and evacuation systems (VES). They are equipped with two loudspeakers and provided with a fixed bracket for wall-mounting. The power output is adjustable by means of a switch placed in the lower side of the speaker. The water light construction and the materials adopted make them suitable to be used outdoor or in particularly damp places (swimming-pools, etc.).