The PA-1771T is equipped with their new Auto On/Auto Shut-off proprietary circuitry. The ANR will automatically turn on when plugged into an aircraft with the radio turned on or plugged into an active intercom. The headset will shut-off automatically when the headset is unplugged from the inline battery box or is manually turned off using the On/Off button on the battery box. The headset will also automatically turn off when the radio or master switch is turned off.

This headset is featured with their cell/satellite phone capability using an input jack. The input jack serves a dual purpose so that the user can listen to music from a CD player, IPOD®, MP3® or external radio and listening to “True Stereo” through the same jack. A custom protective padded case is provided with the headset. 

Features

• Passive: 25dB (NR)
• Active: Additional 20-22dB
• Auto Shut-off
• Cell/Satellite phone interface
• Auxiliary audio interface for music or audible checklist/warnings
• Mono/Stereo Capability
• Dual Volume control
• Custom padded protective case
• Powered by 9 volt battery
• Battery life: 25-30 hrs
• Weight: 12.9 ounces (366 grams)
• Five-year warranty
• Made in U.S.A

Specifications

• Generating element - electret condenser
• Polar Pattern—Bi-directional
• Frequency Response—150-4000 Hz
• Impedance—50 ohms @ 16 VDC
• Sensitivity– 100dB @ 1mW input
• Power Requirements— 8-16 VDC
• Current Drain—8 mA at 8 VDC
• Color/Case Materials —Black ABS
• Weight — 6 grams
• Mating Connector—U173/u
• Audio speaker impedance: 300 ohms
• Nominal Power: 100 mW
• Max Power: 200 mW
• SPL: 102+2dB at 1 KHz
• Effective DNC Frequency Range: 30 Hz-8000Hz
• Active Noise Reduction: 18-22 dB at 100 Hz
• Maximum Ambient Noise Level: 120 dB SPL