PylePyle Portable Megaphone Bullhorn Speaker - 50W, 1200 Yard Range, Built-in Siren, Adjustable Volume Control and Microphone, Perfect for Outdoor Sports, Cheerleading, Safety Drills, and More

Loud! I haven't tried the USB feature though. Takes size 'C' batteries

So, for some time I've had a neighbor with little yippie yappie dogs that have been a total and complete back yard nuisance for years now. After politely asking the neighbors to quiet their dogs several times and them saying "Oh we're sorry, we'll take care of it". And of course they never did, and after many, many calls to animal control regarding the yippie yappie dogs, the dogs kept barking. Then I purchased a Good Life Dog Silencer that would make an annoying sound every time the dogs barks. Woke up one morning to the yippie yappie dogs barking and didn't hear my dog silencer. As it turned out my wonderfully inconsiderate neighbors sprayed my dog silencer with water until it croaked. After making a police report about my silencer I came up with a "more better idea" and purchase the Pyle-Pro PMP58U, I then recorded my neighbors dogs barking and barking and barking and barking and downloaded the recording onto a flash drive, followed the easy instructions and plugged the USB flash drive into the Megaphone and played the neighbors dog barking back at them along with a few expletives and my opinion regarding their dogs barking. So the cops show up because the neighbors didn't like hearing their own dogs barking being played back them with my personal opinions included. Guess what, the police were more than aware of the barking complaints. I can't begin to guess what the officers told my neighbors, but they told me as long as the neighbors dogs continued to bark I could use the Pyle-Pro PMP58U reciprocally but without my personal expletives. Nowadays the dogs bark very little and when they do my wonderfully inconsiderate neighbors quiet the dogs down almost immediately. The Pyle-Pro PMP58U serves its purpose well for me.

You perhaps don't need to spend $1,500 on a new burglar alarm system. Buy this very loud bull horn for your home security needs. Most people don't turn on their burglar alarms half the time anyway. Use this horn when you hear something suspicious. It has a police siren option on the slide switch that is super loud and can be heard half a mile away. That will scare away any burglar or intruder. You also can prepare an audio file on your computer sound recorder and download it to a small thumb drive (USB drive) which you plug into the back of the megaphone. Then when you turn it on whatever was recorded on the thumb drive plays through the megaphone, i.e., music, the sound of gun shots, your pre-recorded warning in your own voice or someone else's voice, etc. The megaphone is loud. Install eight good alkaline c-cell batteries in the unit and forget about it for seven years, or the life of these batteries. Then you'll always have this home security device ready for whatever occasion confronts you. If you know someone who lives by themself then this device, set to play the police siren, will be a very good defensive security tool in lieu of a lethal weapon.I'm sure this device works very well for sporting events and for boating use. The microphone can be attached to the back of the megaphone and it comes with a carrying strap. I certainly like the one I bought.

OK on this particular one when it came, I could not get it to work, but because I had another one from the same company and smaller version, I sent this one back because it’s a very large megaphone, but however, it didn’t work for me to even tell you how it performs I returned it . It was just too big for what I wanted it for but size is the only thing I can tell you about.

I bought this for a picket/rally that's next to a major corridor that has a lot of vehicles going by, and what attracted me is how loud this can get, 50 watts is loud for any event where you need to carry your voice. It's also nice to have an audio jack to attach a device to play music too.Pros:Light in weight, even with eight C batteries.Adjustable volume, you'll really project your voice with this.Option of trigger on handle to activate microphone, or detach microphone and push to talk on side of microphone or use locking mechanism to keep microphone on.Includes a shoulder strap.Cons:When releasing finger from trigger or removeable microphone, the microphone is still running hot for a couple of seconds, rather than shutting off immediately.If you use the detachable microphone, be careful not to put it too close to the front of the megaphone, otherwise a loud feedback sound will happen.There's a rubber gasket band on the battery door, be careful it doesn't fall off when open and shutting the door.The battery insertion instructions on the device is confusing. Instead, pull out the plastic sleeve inside the battery chamber, and follow the instructions on the sleeve to insert the C batteries into the sleeve.Eight C batteries can get costly, but it's the necessary battery power to operate such a loud device. To prevent leakage and damage to your device, remove them when not in use.

So I got this for my brother-in-law. We got to a campground near the lake and he is a bit of a comedian, or at least he thinks so. This thing is loud and gets a lot of attention. The batteries seem to last forever and he gets a big kick out of using it. Great gift.