External microphone to improve and amplify the audio transfer for the use with spy earpiece. Just connect the microphone via a plug to induction loop
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External microphone to improve and amplify the audio transfer for the use with spy earpiece. Just connect the microphone via a plug to induction loop and then place it on clothes. Thanks to this microphone the sound will be transmitted to the mobile phone superior and stronger. The microphone is protected against noise and wind.
