Stunned Friend is a sound simulator of ultrasound sources
Are you friends much shouting or flip on a loud music? Stunned Friends Simulator app allow flip the script. Use the phone's speakers as the ultrasound, choose dynamics, put earplugs and see the friends reaction. Wilderness noise sources as a scout! Play with your friends!
Attention! Stunned friend - the app for fun, and does not use a real ultrasound. You can't stun the people by this sound.