Spiders?????? I keep getting big black spiders within my house, and ive heard...

I keep getting big black spiders within my house, and ive heard of a plug surrounded by pest offense that sends out a silent noise to gain rid of bugs and spiders. The thing is I dont know where on earth to buy it from, I live in Australia, does anyone know where on earth I can get one from?
In Alabama statute, If My property work enunciate...
Answers:    not sure where on earth to find them.

try searching for 'ultra-sonic pest control' or something resembling that in google.

spiders also abhorrence lemon oil - if you can win your hands on some essential lemon grease, mix it up with some wet and spray it around