Stun your friends! (simulator)

Stun your friends is a simulator of unpleasant sounds (high frequency sound, ultrasound).
Stun your friends, teachers!

Wear ear plugs (or cotton wool in the ears), turn on your device, and let friends cling to their ears! And you can just laugh at them.
Earplugs are not necessary, but in this case, you`ll feel the "charm" of unbearable sound.

Caution!
High volume! (It is not recommended to listen the sound for a long time or high or low frequencies at high volume).
Do not hold near the ear!
Do not use headphones!

200 sounds! From sounds of low frequency to ultrasound !

Modes:
Alarm mode.
Timer mode.
Shake mode.


Stun your friends - it's funny, ultrasound simulator.
At school, at work or at home - deafen your friends, brothers and sisters, if they twaddle! Deafen your parents and adults ! Deafen all!