telefon dinleyici

listen to the pronunciation of telefon dinleyici
Türkçe - İngilizce
dictograph
{i} telephonic device with highly sensitive transmitter (often used in eavesdropping)
Much use has been made of it for overhearing, or for recording, conversations for the purpose of obtaining evidence for use in litigation
A telephonic instrument for office or other similar use, having a sound-magnifying device enabling the ordinary mouthpiece to be dispensed with