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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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