Are you looking for an audio-receiver that nobody will notice that you have it withyou? In that case, you are looking for this spy wallet. Because the receiver is hidden in a wallet nobody will realize that you have it with you. In addition, the wireless receiver communicates with an unobtrusive earpiece. Because of its small size and skin-colour no one will see it. You can connect the spy wallet audio-receiver to a walkie-talkie by finding the appropriatefrequency. (Note: the walkie-talkie must be ordered separately). If you would also want to call your conversation partner throught the audio-receiver, a microphone is also needed.