Features & details LOUD AND CLEAR SOUND: This compact mono trumpet speaker is a perfect tool if you want to make your voice audio or music louder. It features 8 ohm impedance and 112bd output, making it ideal for outdoor and indoor spaces GREAT FREQUENCY RESPONSE: Efficient enough to achieve your desired response, this 5” power horn speaker can amplify up to 450~5,000hz. Easily mount on the roof or under the car hood 15 WATT PEAK POWER: This heavy duty high powered cb radio pa speaker features 8 watts rms nominal power and 15 watts peak maximum power so you can amplify your sound with clarity and achieve your desired loudness ADJUSTABLE BRACKET: The horn speaker can be bent and adjusted. For easy maneuverability, the 5-inch ABS horn is equipped with a 180 degree swiveling adjustable mounting brackets