Deluxe Series Sound Shield for XLR Mics - Plexiglass - Sound Deflector for Trumpet, Trombone and Saxophone - For Home Practice, Live Performance, Studio (9" Diameter)

Works great. I can hear myself and don't overblow when playing outside with a mic

I bought this because, most of the time when playing on stage, I can't hear myself. This sound shield bounces the sound of my horn back to me where I can actually listen to myself and get upset when I clearly played a wrong note. Which is a good thing, I can learn from my mistakes next time.

It is small, portable, sturdy, and fits my microphone (actually my SM57 is slightly too small, so I put a bit of tape on it, but that's not the reflector's fault I guess). It does just what I need it to do