Profile: Fourjay Industries specializes in making paging and background music systems. Our products include paging horns, marine speakers, mounting hardware, sound masking, foreground music, amplifiers, microphones and speaker parts. Our 200 series long throw marine speakers are rectangular high efficiency compression driver re-entrant horns ideal for most hailing, alarm signal and two-way communications where intelligibility, noise penetration & directivity are needed. Medium format 10" x 7-3/8" horn reproduces full voice range. Rugged adjustable spline lock mounting assembly and ABS base design allow quick assembly with multiple installation options. Our 400 series 40 watt thundering mini paging horn is a re-entrant compression driver horn for limited space broad coverage applications. High output for voice communication or alarm signal makes this horn ideal for security systems. This horn has adjustable base or flange mount and also have vehicle mount with K4DM bracket kit.