For more information:
GN Netcom, Inc.
77 Northeastern Blvd. Nashua NH 03062
1-800-826-4656 www.gnnetcom.com
Printed in USA.
10/99
GNI-120A
The MPA-II Multi-Purpose
Amplifier works on most
phone systems with a modu-
lar handset connector. The
easiest amplifier to set up
and use, it features a sliding
volume control, headset/
handset switch, mute switch
and a built-in headset stand.
An optional on-line indicator
signals when the headset is
in use.
The 805-FLEX binaural headset. (Behind-the-neck style shown. The 805-FLEX can also be worn
with an under-the chin style acoustic tube.)
Our 0686 In-line Amplifiers
provide a cost-effective option
for standard carbon applica-
tions. Incredibly compact, they
feature a rotary wheel for a
broad range of volume adjust-
ments. Also available with a
mute button, 0686M.
The 0452 Two-Prong
Amplifier is designed for
telephones equipped with a
two-prong headset port. Its
3-position volume control
locks your volume preference
in place.
Also available: The 0911 Two-Prong 6-Wire Amplifier, for push-to-talk dispatch/911 environments;
and the HT One Headset Telephone (HT-1), the first professional-quality telephone with an inte-
grated headset—ideal for PBX and CTI applications.
There’s a GN Netcom amplifier for every need and every application. Like our headsets,
all GN Netcom amplifiers feature a two-year warranty.
Standard Features 805-FLEX
Universal Telephone Interface
∆
Noise-Canceling Microphone
∆
Flexible Boom
∆
Multiple Wearing Styles
∆
GN Netcom-compatible Quick Disconnect
∆
Two-Year “No Fine Print”Warranty
∆
Great Sound, Comfort, Durability
∆
Transmit Specifications
Microphone: Noise-canceling electret
Frequency Response: 300-3,000 Hz
Distortion: Less than 5%
Current Consumption: < 200 µa @ 1.5 V (DC)
Operating Voltage: 1.5–10 V (DC)
Receive Specifications
Speaker: Ceramic
Input Impedance: 220 ohms (typical)
Frequency Response: 500-3,500 Hz
Automatic Gain Control (AGC)
Threshold Level with amplifier: -41 dBV with an input at 1 kHz
Volume Control Range: 18 dB (typical)
Maximum Output: 114 dB spl peak unit
General Specifications
Operating Temperature: 0°–50°C
Polarity: Non-polar in amplified applications
Dielectric Withstand Voltage: 5,000 V AC or 7,000 V DC
Safety: Registered to UL 1459
FCC Parts 68 Registered
OSHA Part 1910 subpart S
CSA C22.2 No. 225-M90
The 805-FLEX headset gives you binaural sound without disturbing hairstyles. The
unique acoustic tube delivers sound to both ears, for binaural benefit with one cord.
The 805-FLEX includes two eartip styles, foam and conical.
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