| 28-30dB of Active Cancellation 12-22dB of Passive Attenuation Backed by LightSPEED 5-Year Warranty  | Exclusive AESTM"Auto Shut-Off" powers down the Active Electronics if system is left unattended. |  | Personal Side-Tone EQ with Bass and/or Treble Boosting |  | Cell Phone Interface |  | Personal Audio Interface |  | Weighs just 16 ounces |  | ANR Power for 50 Hours on just Two AA Batteries |  | Independent left and right ear volume controls |  | Stereo-or-mono switchable |  | Temperature Sensitive Confor-Foam Ear Seals |  | Padded Headset Bag and Mic Wind Screen Included |  | Interface Cable for Personal Stereo Unit / Cell Phone | General Data Connector: .250" stereo 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 Fuel Gauge:Three color LED for High/Medium/Low Battery Status Operating Time: Over 50 hours Weight: 15 oz. Headphone Data Transducer: Dynamic, Selective Frequency Amplified for Enhanced Speech Inteligibility 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: 8-16V DC Appx 5-12mA |