Bouncy Balls: A Good Tool for Managing Classroom Noise - Educators Technology
QBall Throwable Smart Wireless Microphone System Blue Foam Q Ball PEEQ | eBay
Teach Starter - How neat is this...monitor classroom noise level with virtual bouncy balls! It uses the microphone on your laptop, you can 'see' the noise level and so can your students!!
Bouncy Balls by Paul Neave - Experiments with Google
Catchbox | Wireless microphone systems for crisp audio capture in large spaces
Gestion du volume sonore dans la classe - logiciel Bouncy Balls - Craie hâtive
Mesurez et visualisez le niveau sonore de votre classe avec Bouncy Balls