I took my device home with me this weekend to PLAY and experiment with placement and possible sounds it could make. The testing went really well.
They are not uploading very well so they can just stay in my laptop for now!
Overall, the testing showed me that the alarms work well and are effective on any material. It also showed me that some materials amplify or dampin affecting the overall sound quality. This might mean having 2 devices to make sure that they can be heard from everywhere, but generally the sounds were transmitted loudly and could be heard.
I also discovered that when i played back my sounds, they don't sound as special and rewarding!