General Description :

The Telex Airman 750 is a lightweight, general aviation headset
complete with boom-mounted, noise-canceling electret
microphone.
The Airman 760 is identical to the Airman 750, except it does not
have a microphone.
The Airman 750 is approved for aircraft use under FAA ( Federal
Aviation Agency) TSO C57a and C58a; the Airman 760, under
TSO C57a.

Specifications :

Boom Flexible boom
Ear Seals Foam
Mic Noise Canceling Electret Microphone
Stereo No
Weight 3.2 oz ( 90.7 g)

Headphones
Both units feature open-air style earphones for long-term, fatigue-free
usage. The earphone housings are mounted on stainless steel sliders
which permit over two ( 2) inches ( 55mm) of fitting adjustment. The
ear cushions are removable for easy field replacement.
Microphone ( Airman 750 Only)
The Airman 750 Headset features a miniatures, amplified, noisecanceling
electret microphone that provides superior 400Hz hum
rejection. The microphone boom is flexible for optimum microphone
placement, and it is reversible for wearing on either side of the head.
For best results, the microphone should be positioned as close to the
mouth as possible. A position at one side of the mouth is best to
minimize popping, hissing, and breathing sounds when speaking.
The microphone amplifier is contained in the boom-side earphone
housing. The amplifier has an adjustable gain control and provides
output levels equivalent to carbon microphone levels. ( Adjustment by
a qualified avionics technician is recommended.)