DICTAPHONE IN METAL PRE-EMINK CASE 418-EDIC-MINI-TINY16-U49-300H AUDI CLOCK RECORD,110HR. Battery.
A miniature digital voice recorder (audio dictaphone) camouflaged into a small box the size of 3x AAA flashlights for professional sound recording to your internal memory. 300 hours of audio recording, battery capacity up to 110 hours per charge, or replacing them. The sensitivity of the microphone is for that model up to 15m !
Thanks to the 5 x-split microphone, the voice recorder can record sound from a certain direction over a distance of up to 15 meters and significantly reduces the background noise of the microphone. Why is that possible? If the recorded object is located sideways from the direction of the microphones signal "cancel - cancel" due to the phase difference of downloading the sound of each microphone.