https://www.austincustombrass.biz/selfiesound-clip-on-sound-reflector/
Or - https://www.amazon.com/Sound-Reflect-Deluxe-Shield-Horns/dp/B0977Q18TC/ref=asc_df_B0977Q18TC/?tag=hyprod-20&linkCode=df0&hvadid=532852622530&hvpos=&hvnetw=g&hvrand=5998709111879983800&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=1018700&hvtargid=pla-1431740401150&psc=1