It is a headset for a teacher and students.
Both ears are covered and are excellent about the sound insulation.
Unidirectional microphone doesn’t pick up a sound in the neighborhood.
It is possible to pick up the clear voice of a teacher and a student.
|Receiver||Dynamic receiver, Stereo|
|output sound pressure||100dB|
|Frequency characteristic||50Hz ～ 20kHz|
|Microphone||Electoric condenser Microphone|
|Sensivility||-47dB ( 0dB = 1V )|
|Directional characteristic||Single directivity|
|Microphone ON/OFF switch||Microphone switch becomes OFF by setting a microphone arm to level position with a head band|