Review on Pyle PLMRMBT5B: Weatherproof Bluetooth Marine Amplifier - 600W Power, 2 Channel Wireless Amp for Stereo Speaker, Waterproof Design, RCA/AUX/MP3 Input by Kyle Brown

This booster works great when not trying to blow out your eardrums. For most people, this bluetooth booster works great on a boat, golf cart, or anywhere else that doesn't have a stereo. It's easy to hook up, the functionality is great for what it does, and it's a cost-effective solution if you're looking to add aftermarket audio. Personally, I've used this amp to put together a small "cold stereo" Bluetooth system that can be a portable guitar amp. For that it works perfectly. Combine this with a small 8Ah battery and 4 cheap Pyle 6.5" marine speakers and you get a nice portable bluetooth stereo that doubles as a guitar amp. The Bluetooth input combined with the 4 RCA inputs allows you to plug in a mic and connect easily to guitar for travel amp included, unit works great and reaches volumes that should be usable for almost any purpose Cooler, 4 JBL each 6x9 I have to say speakers make all the difference in the world when it comes to quality Originally I thought that the amp might be a little underpowered for what it is, but after adding some quality speakers to the amp it really shines. It gets loud enough that you can't talk around it at full volume, and a "comfortable" listening volume is probably somewhere in the middle. Mileage may vary depending on the quality and brand of speakers connected. It's definitely worth the money you pay for it, it does exactly what it says on the tin. I've added photos to show the setup for the purpose I've been using this amp for. Can be used as a standalone device or in combination with an existing non-Bluetooth head unit. Great DIY kit. Cons: The device comes with 0 gain, people might mistakenly think the amp is broken when they receive it. The plastic hex nut used for assembly may be fused (mine did) and requires some brute force to loosen. The volume control on the control panel is disconnected from the audio of the device during a Bluetooth connection. (This means that you have to increase the phone volume and the amplifier volume independently.)