The Whelen 295SLSA1 siren features "Hands Free" allowing you to keep both hands on the wheel, both eyes on the road and access three siren tones and on/off through the vehicle horn on the steering wheel. Scan-Lock features lets you choose from 17 siren tones to preset during siren installation.

Features:

• Selectable 100 or 200 Watt Output.
• Hands-Free Operation Plus 17 Scan-Lock Siren Tones to Choose From.
• User Selectable Siren Tones at Time of Installation Via A Momentary Switch Located on The Back of The Unit Secures Siren Tones For Agency Standardization.
• Customize The Placement of Each Siren Tone on The Rotary Knob.
• "Siren in Use" Icon Driver.
• Faceplate Volume Control Knob.
• Five (5)Year Warranty on Amplifier.
• Two Manual Functions Allow For Additional Siren Tone Choices.
• PTT (Push To Talk) Switch on Microphone Overrides All Siren Functions.
• Combination On/Off & Horn Ring Transfer Switch.
• Pre-Wired Unidirectional Microphone.
• Adjustable Preset Radio Repeat Volume.
• Input Polarity Protection.
• Output Short Circuit Protection.
• External Spade-Type Fuse.
• Bi-Polarity Horn/Ring Control Activation.
• "Aux Enable" Activates Siren Tones Via Input (Slide Switch, Power Controls or Relay-To-Ground Connection).
• Quick Disconnect Plug For Ease of Service or Replacement.
• SI TEST, Fully Diagnostic Silent Test of Amplifier And Speaker(S).
• Adjustable Intensity Backlighting In Soft LED Non-Glare Green.
• Adjustable Bail Bracket Allows The Mounting of The Siren In A Variety of Positions.
• Complements All Whelen's Under Dash Products.
• 2-1/2”(H) x 6”(W) x 7”(D)