Friend Stunner prank simulator

Friend Stunner simulator is a prank app for friends which uses the speakers of a phone as a source of ultrasound for stunning all other sounds around or for stunning your friends’ ears! Choose from different style sources, use earplugs*, press the green button to start the simulator and enjoy the reaction of people around on the prank! Stun your friends if they’re speaking silly! Stun the sound which doesn’t deserve to be heard!
* Using earplugs is not necessary, but thus your ears are going to be ‘mocked’ as well.

Features:
3 different looking sources of ultrasound - 3 different ways of sounding!
Loud sound!
Mod design of speakers!
Funny joke for friends!

Warning!
Friend Stunner is a prank simulating ultrasound. You cannot stun anyone for real. It's a joke created for fun.