The spy earpiece offers you the way to send or receive signals without any person around you noticing. Such covert earpiece is best for you if you want to receive pre-recorded information or messages during speeches, interviews, and so on. Basically this device is initially developed for the purpose of audio conversations during covert operations, but nowadays it is also available for the general public.

A spy earpiece can be connected to your MP3 player, mobile phone, audio recorder or radio in order to send messages. The spy earpiece contains a built in microphone which enables you to do two way conservations.

The most important part of the spy earpiece is the inductive transmitter which transmits audio signals. The transmitter itself is available in different forms. Some transmitters have a neck loop that may connect with your cell phone by the earphone socket.

Other types of transmitter use Bluetooth technology. With this technology, you need no wire link. Such technology works with signals that travel in air. Nowadays, the Bluetooth is available in common objects like pen, sun glasses, Bluetooth watches and so on. In fact, these devices work as an antennae or Arial in order to transmit signals from earpiece to other devices.

The spy earpiece also has a microphone used to pick output sounds. With the help of the microphone, you are able to talk with any person. These microphones also use Bluetooth technology to transmit signals.

The main purpose of the spy earpiece is to do audio conversations during different covert operations. The Bluetooth earpieces are widely used by the agents of secret agencies and various security companies. These devices are usually used by the professional spies.

Today, the spy exam cheat earpieces are also used by the students who can use them for the purpose of cheating in exams. It is used by the new generation of exam cheaters and which is really a very bad and negative use of this device.