SoundAlert 100W Emergency Police Siren Kit [118-124dB Slim Speaker] [2 x 16A Switch Control] [Hands-Free Air Horn] [PTT Mic] [Radio Rebroadcast] Warning PA System for Emergency Vehicle Trucks Cars

This system met all expectations and works flawlessly. While driving at 45 mph, other drivers can hear the pa system inside their own vehicles

Its grat

I bought it for the PA function, but its so quiet its almost useless. I didnt buy it for the sirens but they sound bad too. They dont sound anywhere near real. The thing is also incredibly bulky and barely has anything inside it. Only reason i give it 2 stars is because it has gotten a couple laughs out of my friends, but i totally wish i would have bought something way different. If i hadnt misplaced the box it came in i would probably return it. Nowhere near worth 100$

The unit works well and does what we need it to do. In case of an emergency we can speak to people who may not know of any bad weather coming in on us.

The speaker sounds loud when youre standing outside the car, but from inside you barely hear anything. On the highway its even worse so the people in front dont notice a thing.

I didnt even install it. When I opened the box it seemed a ton cheaper and cheesier than I thought. Returned it right away.

Its loud and will do exactly what you want. Totally not speaking from experience but the less smart humans driving around will pull over and yield to ANYTHING with a siren :) Having controls on the box and not the remote does make it challenging to use at times depending on where its mounted.

Install was easy and all hardware minus the bolts to mount the speaker. Its not as loud as other ones out there but its noticeable. When the mic is connected the speaker clicks and the siren randomly goes off. I ordered a replacement and it does the same thing. So I only plug in the mic if I need the PA but you have to unplug it if you want to leave the unit on.

large profile on speaker

ABSOLUTELY love this thing. Just wish siren sounds were a bit more modern but other than that WHAT A PURCHASE.. anyone who is thinking of doing it should already have by now.