The new H2Convery is a remote siren system with easy-to-operate handheld controller. It has the follwing unique features: PA with Built-In Noise Cancelling Mic, Radio Rebroadcast, Stand-by, Siren Scroll, Park Kill with Level 3 Drop-Out Option, Horn Ring Transfer, Vehicle Light Control Buttons (3 Progressive, 4 Auxiliary), All Buttons are Backlit with On/Off Color Change, Level 3 Auto Siren Tone On, Keypad, Backlight Off Option, Push Button Programmable Siren Tones, Two Programmable Airhorn Pitch Tones, Volume Control Thumbwheel on Hand-Held Controller, and Siren Lock.