Whelen Alpha 12R 100 watt remote siren amplifier

Used condition. Fully bench tested and operational with a 100 watt siren speaker. 12 volt DC. Has both plugs with varying wire length. 
Have multiple in stock and manufactured date, serial number, and cosmetic condition may vary from the pictured unit. All have cosmetic wear including light scratches, scuffs, dings, grime, velcro,etc. 
Has individual 12 v trigger wires for siren tone activations. Great to wire in as a secondary siren off a existing siren for dual siren setup or use as a discrete setup.