Whelen Hands-Free Siren With P.A. 295HFSA1

***Discontinued - No Longer Available*** 295SL100 has replaced this siren. Click the link below to go to the new siren. ELECTRONIC HANDS FREE SIREN AMPLIFIER, Volume control knob on faceplate standard. Selectable 100 or 200 watt output, standard. Si-Test, a silent self diagnostic feature which provides real time indication of proper siren/speaker operation. Two different diagnostic tests include: Continuous dynamic testing during normal siren operations and silent testing while in “Radio” mode with the “manual” button depressed. In ”Hands Free” mode, the siren will be in ”standby” mode awaiting instructions. You can turn the siren On, activate WAIL, YELP or PIERCER TONES and turn the unit Off from the horn ring. No more eyes off the road while fumbling for the siren controls with one hand! *REQUIRES 100 WATT SPEAKER, SOLD SEPARATELY