Features Wide Compatibility - Our Pa speaker horn features an 8 ohm impedance, providing compatibility with a wide range of amplifiers and ensuring optimal performance.adjustable Bracket - The loud speaker horns position can be bent and adjusted. It is equipped with a adjustable mounting bracket for easy maneuverability according to your needs.higher Sensitivity - Experience higher efficiency with our horn speakers' 100dB sensitivity rating, ensuring maximum output from your amplifier's power.compact Design - Designed with practicality in mind, the siren speaker offers the perfect balance of size and portability for easy transport and setup.pa Horn Specification:Color - BlackRMS Power - 20WMax Power - 50WImpedance - 8 OhmFrequency - 500Hz–5kHzSPL - 100 dB 1W/1MMaterial - ABSDimensions - 6" H x 4" W x 8'' DPackage Includes:4x Pa Horn4x Installation Bracket