Chris Brown

Where can I get a good spy listening device?

*It has to be something I can buy in a shop, and in Melbourne, Austraila (big shops preferably, like JB Hifi etc)
*Under $50
*Needs to be able to hear quiet whispering from at least 10 meters away

Any suggestions would be appreciated
Also, not something that I have to leave part of it lying around, I want to get one of those things that has headphones and you point it at the conversation and you can hear everything they’re saying