Bull Horn has a ‘Fog Horn’ switch & an anti-howling dynamic type microphone. Hold megaphone close to your mouth, press trigger switch & begin speaking. Adjust volume control to a position where there’s no howling feedback.
$18 – 16 WATT BULLHORN, Hand-Held, 600 yd range
Comes with 6 “C” size (or 10 “AA”) fully charged Re-Chargeable Batteries
Bell Diameter 8″ – Length 14″
$20 – 20 WATT BULLHORN, Hand-Held, 800 yd range
Comes with 8 “C” size fully charged Re-Chargeable Batteries
Bell Diameter 9″ – Length 15″
Weighs approximately 7.5 pounds
Batteries will last approximately 2-3 hours of CONTINUOUS NON-STOP use at max volume. If you require longer use & replace the batteries be sure & return the Re-Chargeable ones provided or you’ll be charged $5 for each one!
$25 – 25 WATT BULLHORN, Hand-Held, up to 1 mile
15.3″ x 10.7″ x 10.1″
Amplivox Mity-Meg Plus 25-Watt Megaphone is designed to help you make your voice heard! When it comes to outdoor events, this megaphone is able to give you plenty of sound, with an effective range of up to 1 mile. It features a comfortable pistol grip and 3 modes-talk, siren & whistle. The rechargeable battery pack gives up to 8 hours of continuous talk time so you can keep going, or you can use 8 C batteries for up to 40 hours continuous talk time. If you don’t want to hold the microphone up the whole time, a detachable coil-corded microphone is included.
No more YELLING, project and amplify your voice! Bull Horns are great for communicating to large groups of people at events such as races, sporting events for coaches & referees, company picnics, large family reunions, ground breaking, and much more!
Historically & scientifically speaking, these have been called by several names: megaphone, speaking-trumpet, bullhorn, blowhorn, or loudhailer. They are portable, hand-held, cone-shaped acoustic horns used to amplify a person’s voice and direct it in a given direction. The sound is introduced into the narrow end, by holding it up to the face and speaking into it, and the sound waves radiate out the wide end. A megaphone increases the volume of sound by increasing the acoustic impedance seen by the vocal cords, matching the impedance of the vocal cords to the air, so that more sound power is radiated. It also serves to direct the sound waves in the direction the horn is pointing. It somewhat distorts the sound of the voice because the frequency response of the megaphone is greater at higher sound frequencies. INSTRUCTION SHEET link