от 12345 » 13 Яну 2010 20:09
Zdrasti,
Prpodavam tozi model.mnogo dobro izpulnenie.upotrebqvanisa 1 mesec,dokato letqh na pa-31-350.funkciata active noise cancellation e mnogo dobra.ako te interesuva pishi.
cena 700 lv.
david clark sa dobri no mnogo tejki.ako letish poveche ot 30 min ste te zaboli glavata.ne si zaslujava povqrvai mi(osven ako ne letish na helikopter).
Thirty 3G Headset
28-30dB of Active Cancellation
12-22dB of Passive Attenuation
Cell/Satellite Phone Interface
Patented AES™ "Auto Shut-Off" Powers Down the Active Electronics if System is Left Unattended
Battery Status Indicator
ANR Power for up to 30 Hours on just Two AA Batteries
Auxiliary Audio Interface for Music or Audible Checklist/Warnings
Personal Side-Tone EQ with Bass and/or Treble Boosting
Dual Volume Controls, Stereo or Mono switchable
Adjustable Gain Pre-amp Allowing for Field 'Balancing' of Mic Sensitivities
Temperature Sensitive Confor-Foam™ Ear Seals
Weighs Under 16 Ounces
5-Year Warranty
Padded Headset Bag, Mic Wind Screen, and Batteries Included
General Data
Connectors: .250" Stereo Headphone Plug .206" Stereo Microphone Plug
Power Supply: Small In-Line with Left and Right Ear Level Control, Stereo/Mono Switch, Powered by Two AA Batteries
Battery Status Indicator: Red LED Low Battery Indicator
Operating Time: 25-30 hours
Weight: 15.8 oz
Headphone Data
Transducer: Dynamic, Selective Frequency Amplified for Enhanced Speech Intelligibility
Frequency Response: 20-30,000 Hz
Nominal Impedance: 120 ohms Stereo 60 ohms Mono
Microphone Data
Transducer Principle: Noise Cancelling Electret
Frequency Response: 200-5000 Hz
Maximum SPL: 114 dB
Terminating Impedance: 470 ohms
Operating Voltage: 8-16 V DC Appx 5-12mA
Active Cancellation Profiles