Rumbler low frequencies deliver up to 10 dB more sound pressure inside civilian vehicles near emergency vehicle—getting attention and clearing traffic more effectively than a standard siren tone
Low-frequency tones work simultaneously with primary siren
Produces penetrating/vibrating low-frequency sound waves
Enabled via any emergency vehicle steering wheel horn ring
Eight-second safety timer provides automatic tone shutdown
Highly effective in dense urban environments with heavy vehicle traffic
Rumbler low frequency speakers work in conjunction with Federal Signal sirens that feature integrated Rumbler Traffic Clearing capability
Rumbler low frequency speakers are also available with Rumbler amplifier to work with other Federal Signal sirens
Vehicle specific mounting brackets available, sold separately
Three-year warranty