Johnny H
Google
I purchased a listening devise called a “Double Adaptor Covert VHF Bug Listening Device” which you can plug into any power input and tune in with a FM radio transmitter. Nice and sensitive microphone and absolutely crystal clear sound with little to no static. Perfect to use for a multitude of different things, excellent customer service and about $50 cheaper than other surveillance/spy shops around Melbourne!
Highly recommend this shop and there are a lot of other gadgets I’ve put on my wish list.