MODEL- ER22C              VENDOR- ETYMOTIC RESEARCH
    
FEATURES- ETY COM Handsfree Mobile Phone Headset 
       Etymotic Research combined its noise-isolating earphone and noise-
        rejecting directional microphone technologies to produce the most 
        technically advanced headset of its kind. The insert earphone 
        optimizes sound quality and noise isolation, and the close-talking 
        directional microphone allows you to speak softly for greater 
        privacy. With the ETY COM, clear two-way conversation is possible 
        in very high levels of background noise. 
       Compatible with many cordless phones (900 MHz and 2.4GHz).
       Compatible with most Motorola mobile phones and with most other 
        mobile phones requiring a universal, 3-conductor 2.5mm plug.
         - Adapters for Nokia mobile phones and compatible Handspring Treo 
           and Palm Tungsten W PDA/Phone models, click here.
         - Adapters for other brands of mobile phones from Belkin, click here.
    Includes ETY COM headset, 4 ft. cord with 3-conductor 2.5mm plug,
      Assorted eartips, Replacement filter, Filter changing tool, Shirt 
      clip and Case.
* Exceptional Sound Quality 
   - ETY COMs high-fidelity earphone (similar to the ER-6 that is designed 
     for accurate music reproduction) provides noticeably better sound 
     quality than ordinary headsets.
   - Frequency response extends beyond the typical low-fidelity telephone 
     bandwidth.
   - The headset smooths the peaks in the frequency response that 
     ordinarily make sounds harsh and uncomfortable at loud volume levels. 
* Unsurpassed Noise Isolation 
   Provides the highest sound isolation of any mobile phone headset: 
    - Noise reduction = 37 dB, averaged over octave frequencies from 
      124 ~ 8,000 Hz.
    - Noise Reduction Rating (NRR) = 24 dB, as measured by independent
      E-A-R CAL Laboratory (Indianapolis, IN).
    - Allows only the audio from the caller to enter the ear. 
* Highly Directional, Noise-Canceling Microphone 
   - The ETY COMs highly directional microphone is positioned close to the 
     mouth for best clarity and maximum rejection of background noise.
   - Up to 25 dB more noise rejection than boom mics that are not close to 
     the mouth.
   - 4 to 11 dB greater noise rejection than other microphones in the same 
     location.
   - Allows you to speak softly for greater privacy. 
     
  -- SPECIFICATIONs ----------------------------------
RECEIVER     - Transducer type           : balanced armature
               Impedance                 : 32 Ohms @ 1 kHz 
               Maximum continuous input  : 1 V 
               Sound pressure level 1 kHz: 97  3 dB @ 0.1 V 
               Frequency response        : 22 Hz to 12 kHz 
MICROPHONE   - Microphone type           : directional electret 
               Operating voltage         : 1.0 V to 10.0 V 
               Close talking sensitivity : -46  3 dB dB re: 1 V/Pa @ 1 kHz
                                           (measured @ 15 mm from source)
               Noise Rejection           : 10 dB
                                           (compared to an omnidirectional 
                                           microphone at the same location) 
www.etymotic.com