Whelen Howler Siren & Dual Speaker System with Mounting Bracket Whelen Howler Siren & Dual Speaker System Mounting Bracket (Choose your Vehicle):2008-2017 Ford Expedition Mounts externally to side of

Mounts externally to side of console

Waterproof durable push button On/Off switch

Size of Each Housing: (Maximum Length) H=5

Optimum performance assured when used with all Whelen high-power electronic sirens

Whelen Howler Siren & Dual Speaker System with Mounting Bracket Whelen Howler Siren & Dual Speaker System Mounting Bracket (Choose your Vehicle):2008-2017 Ford Expedition Mounts externally to side of*This is a Made to Order item. An effective added layer of warning when used with your 100 200 watt siren amplifier. Howler provides deep, low frequency tones, which are able to penetrate other vehicles, alerting drivers and pedestrians of your approach. LOW FREQUENCY TONES FOR INTERSECTIONS AND HIGH RISK AREAS. Howler is not a replacement to the vehicle's primary siren; Howler adds a minimum eight second penetrating burst of low frequency siren sound