does any one know it there is a bug detection that i could purchase?

Question

conversation that i have in my car and house seem to be recorded

Answer 1

You will just have to look for it. You could also bring a microphone (a hand held cb will work good) and turn it up loud. Move it around the area and if it gets close to another speaker (bug) then it will screech (squeal) and you will know something is there.