Telephone and microphone headsets '' TMG-4 '' and '' TMG-5 ''.
Headphones, headphones, headsets ...Telephone-microphone headsets "TMG-4" and "TMG-5" have been produced since 1969 by the Tula plant "Oktava". Designed for completing classrooms for learning foreign languages. Headsets differ in headphone resistance. In the "TMG-4" model - high-resistance (about 3 kOhm), in the "TMG-5" - low-resistance (about 200 Ohm). Microphone sensitivity 0.8 mV / Pa. Headset dimensions 295x200x80 mm. Weight 0.35 kg. Cord length 1500 mm.
