7/16/08 :
Alvin Emergency Vehicles
Shake Motorists Out of the Way With the Rumbler

2/14/08 :
KCRA Sacramento: Police Cars Rumble

11/14/07 :
MyFox Chicago: Police Rumbler Helps Clear the Streets

11/6/07 :
WGAL Lancaster: Watch New Police Car Sirens Video

07/17/2007 :
MyFox Philadelphia | Police Use Low-Frequency "Rumbler" to Get Drivers' Attention

06/15/2007 :
My Fox News NY — NYPD is feeling the impact of Federal Signal's Rumbler™ intersection-clearing system.