The Primacoustic VoxGuard is a cool mic shielding tool for recording vocals or other instruments in spaces that might not be as acoustically sound as you'd like. It's primarily designed for vocals, but I don't see why you couldn't use it for mics on guitar or bass amps as well to help isolate the mic. Personally I've only used the VoxGuard for vocals and I'd probably only recommend getting it for this reason. Anything else you deem worthy of using it for should be a bonus in my opinion. There isn't all that much that you need to know about the build of the VoxGuard, as it's a pretty simple device with sound proofing foam covering the inside and a spot to put the mic through. Once it's set up with your microphone there's literally nothing else that you need to do with it. While extraordinarily simple, this can make a huge difference in your vocal sound. Blocking off unwanted noise and ambient sounds in your home studio is extremely important if you are looking to get professional sounding voice recordings. It's perfect for singers and voice over artists alike. The Primacoustic VoxGuard is definitely designed for home studios and isn't really necessary in larger pro studios, depending on the environment of course. At the price of only $100 US dollars, it's really a no brainer for anyone making recordings in their home studio. With more and more people leaning toward doing work at home, the VoxGuard puts the power in your hands to step up your home studio game at the price that almost everyone will be able to afford. There are a few options out there for things like the VoxGuard, including ones from Studio Electronics and Auralex. All of them are in the same price range, but you can never go wrong with Primacoustic as they have a stellar reputation for a reason!