ThunderPower THUN450 Extra-Loud Megaphone Speaker – 35W Voice Amplifier for 1,400-Yard Range – Bullhorn Megaphone with Voice, Siren & Whistle Mode – Bull Horn Loud Speaker with Mic & Shoulder Strap

I work at a community college and every year for commencement, it is my responsibility to run the students through the rehearsal in the morning. The Student Life office usually gives me a small megaphone to use but it is never loud enough for all the students to hear me. I end up setting it aside and yelling (yes, its sad that my voice is louder than the crappy megaphones the college provides). By the end of the day, my voice is very tired. I bought this megaphone hoping it would be a lot louder than the little ones I've used in the past years because I don't want to yell anymore. I received the ThunderPower 450 last week and took it out on campus with a coworker to test it out. This megaphone is VERY loud. My coworker was able to clearly hear and understand me from over 100 yards away while I spoke into the mic at a normal volume without shouting or raising my voice. This is a little bit on the heavy side but very well constructed and with the shoulder strap, the weight is not an issue. Anyone purchasing this megaphone will not be disappointed with it. It is a high quality product and is VERY LOUD.

I just received this megaphone. Everything is in good working order and it seems loud enough to me. As a rowing referee, I will be putting this thing through some major tests! My first impression is that it is a little heavy - takes 8 C cell batteries, and larger than some of the other megaphones I've tried out. The key will be durability and how it deals with wet weather.

Bought this as a christmas gift, and when it was opened and used for the first time a month later it was discovered that it was broken. There is corrosion inside the battery compartment, the battery latch doesn't properly connect, and even when the battery compartment is held shut, the megaphone only generates quiet, almost rhythmic clicking noises and will not project any other sound. Moral of the story - check your purchase for defects as soon as it arrives.

I had bought the 150 version last year (two steps down from this one), and I realized I needed something louder. I run a girls camp, and was told by staff that I couldn't be heard in the back of our pavilion (about 100 ft. long and has open sides). I bought this about a week ago and I've been trying it at home. It is A LOT louder than the other one. I think I will definitely be heard at camp. I also love the fact that I can control the level of loudness by a dial with 10 levels on it. I also like that it has a siren and a whistle (for emergency drills and real emergencies, plus I use the whistle for station rotation). The strap is a must as this megaphone is a bit heavy and cumbersome, but the handheld mic totally makes up for that. Fun and easy to use!

I HAVE BOUGH5 5 OF THESE IN YEARS FOR ME AND FRIENDS AND IT WORKS GREAT AND THE VOLUME IS PERFECT! THIS IS MY FAVORITE THING NEXT TO MY CANON MARK II 6D CAMERA

It's a little heavy, but works GREAT in all kinds of weather! Sound is loud, clear and very consistent. Batteries lasted for about 6 weeks when used for approximately 20 mins. a day - 5 days a week - I don't think you can ask for more than that, especially since many of those days it was used in 30 degree or below weather.

The megaphone inside was actually a cheap, off brand one. Defrauded.

It is ridiculously loud...exactly what we needed. While the batteries make it heavier to handle, it outlasts our rechargable one and is 10x louder. Perfect for what we need.