the first pair of headphones was invented in 1949.
the first pair of headphones was invented in 1949.
when was the first pair of headphones invented?
1949
in the context of telecommunication, a headset is a combination of headphone and microphone. headphones connect to a signal source such as an audio amplifier, radio, cd player, portable media player, mobile phone, video game console, or electronic musical instrument, either directly using a cord, or using wireless technology such as bluetooth, dect or fm radio. the first headphones were developed in the late 19th century for use by telephone operators, to keep their hands free. initially the audio quality was mediocre and a step forward was the invention of high fidelity headphones.
headphones
section::::records and achievements.









































bullet::::- first pair skaters in history to win both the olympics gold medal in pairs and in the inaugural team event.









































bullet::::- first pair skaters to break the 220 mark in the overall score, achieved at the 2013 world championships (225.71).









































bullet::::- first pair skaters to break the 230 mark in the overall score, achieved at the 2013 nebelhorn trophy (231.96).









































bullet::::- first pair skaters to break the 80 mark in the short program, achieved at the 2013 nebelhorn trophy (81.65).
tatiana volosozhar