PRETTY STRAIGHT FORWARD ... ITS NEW IN THE BOX. Came out of a Spin Studio that didn't need it.
HEADSET MICROPHONE - AKG
The C544 L high-performance head-worn miniature condenser microphone
with an easily fitting headband is perfect for gymnastics instruction
and other handsfree speech applications. A transducer shock mount
reduces body noise to a minimum and the short microphone arm places the
microphone in the right position to the mouth to minimize pop and
breathing noise. A special moisture shield on the boom prevents the
microphone from being clogged by sweat or makeup.
The C544 L comes with a three-pin mini XLR connecter which fits all AKG
WMS Series body-pack transmitters.
Type
Pre-polarized condenser microphone
Polar Pattern
Cardioid
Frequency Range
80 - 20000 Hz
Sensitivity
25 mV/Pa (U=9V, R=10kOhm)
Impedance @ 1kHz
<200 Ohms
Recommended load impedance
>2000 Ohms
Max SPL for 1% THD
120dB
Equivalent noise level (IEC 60268-4)
30dBA
Signal to Noise Ratio (@94dB SPL)
63dBA
Recommended Serial Resistor
10kOhm (2kOhm - 10kOhm)
Dimensions
145 x 110 x 70 mm / 5.7 x 4.3 x 2.8 in.
Net Weight
30g (1.1 oz.)
Shipping Weight
200g (7.1 oz.)
Type
Mini XLR
Gender
Female
Contacts
3-pin
Cable Length
1.5m (5 ft.)
Current Consumption
<2mA (<500uA if U-9V, R=10kOhm)
Operating Voltage
9V (2V - 10V)