- are there pests around making some troubles and want to repel them all with repelling sound?
- want to play repelling ultrasound trying to repel some creatures, like rats, around?
- are there annoying noisy/dirty birds around your house to repel with sound?
- do you need a repelling sound gun protecting crop fields using repelling sound?

here there is Repellent Sound Player that let you play different repelling sound clips to try and see what sound repels the most of your targets - being it rat, bird or whatever that cannot stand repelling sound

effectiveness of repelling sound can be multiplied if connected to external loudspeaker!

let's share your success and failures in reviews helping each other finding out what is the most effective use of Repellent Sound Player against those pests!

What ultrasounds can a rat make?
http://www.ratbehavior.org/rathearing.htm#RatsUltrasound

"20 kHz range: Rats emit long 20 kHz vocalizations when they are unhappy or stressed" thus ultrasound can repel rats.

for more scientific facts about ultrasound signals of rats see: "Principles of Rat Communication: Quantitative Parameters of Ultrasonic Calls in Rats" from Stefan M. Brudzynski http://www.cursoecologia.ufba.br/Arquivos/Comunicacao_Animal/rat_communication.pdf)