New App released, Ultrasound Killer is a Mosquitoes & Rats repellent, it works with a certain frequency ultrasounds.
Surely you do not find an application as easy to use.
How to? Press “On” to activate a repellent and use the volume keys to configure the effectiveness.
More volume is equal to say more effectiveness because the sound waves travel farther so the radius increases.
Here you can see a video demostration: