Voice technologies

Dongyang Digital

"Digital Makes a Better Life"

Headsets VT720W

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VT720W Waterproof Sports Headworn


The Voice Technologies VT720W is a noise-cancelling, waterproof headset microphone for sports and aerobics instructors as well as television field for wireless transmission and amplification voice.


The Bi-directional microphone head is waterproof and the condenser microphone capsule is a highly efficient noise canceller, which prevents feedback from loudspeakers or interference from crowd noise etc. The headband behind the neck is adjustable.

 

Area of application:

Sports and aerobics instructors 

Specifications

 

 

Microphone:

 

Generating Element:
Back Electret Microphone
Polar Pattern:
Bi-Directional
Frequency Range:
300Hz-5kHz (1cm close talking)
Sensitivity (3wire):
6mV per Pa
Noise Level:
26dB "A" weighted
Max. Input SPL:
120 dB SPL
Impedance:
3 kOhm
Bias/+VDC:
1.3V - 20 V
Current Drain:
50 uA
Color:
black
Cable:
Length 1.4m ¨ª 1.5mm
Weight:
50g

 

Wiring Configuration (3-wire):

Red
"+" BIAS
White
Signal (Audio)
Silve
Ground (Shield)
r

 

 



Frequency Response

Frequenzkurve