Accutone USB400 - Manual (Page 3)

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Main Switches and Interface
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13. Cable ends with USB plug
Multiple status LED-indicator (white/red/blue)
Silkscreened muting indications (microphone or speaker mute)
4-direction controlling switch (volume adjustments and muting)
Silkscreened volume indications
Cable ends with connection to headset
Microphone Capsule
Aluminium microphone voice tube
Ear Pad (including 40mm speaker chamber)
Adjustable voice tube holder
Microphone voice tube rotational pivot
Microphone connecting cable (with SR)
Extendable double-arm headband
AU400
CM400
Stereo Headset CM400
USB Controller AU400
Cord 2m long
Mass 120 g (including controller)
Size 40mm diameter
Type Open air dynamic driver unit
Maximum input power 60 mW
Impedance 32W ±15% at 1kHz, 1V
Sensitivity 116±3dB(3mW/1CM)
Frequency range 140 - 20,000 Hz
Design Flexible boom microphone
Type Electret condenser
Open circuit voltage level -47dB (0dB=1V/Pa)
Frequency range 20 - 20,000 Hz
Frequency range 20 - 20,000 Hz (headphone)
100 - 10,000 Hz (microphone)
Data resolution 16 bit
Sampling rate 48 kHz Stereo
Receiver gain 14dB Max.
Output power 35mW Max.
THD +Noise <0.4% @ P =30mW 20~20,000 Hz
0
S/N @ THD <0.4% 86dB
Master volume control range 0~46.5dB attenuation
Microphone gain 20dB Max.
Volume control range +12dB ~ -34.5dB, 1.5dB step
Power supply USB bus power compliant (5V, 100mA)
Dimensions (excluding projections)
approx. 28x65x18mm (w/d/h)
Operating environment compliant operating systems:
Windows 98 SE/Windows 2000/
Windows Me/Windows XP
Apple Macintosh OSX
CPU: Pentium II 266 MHz or better
Receiver
Microphone
Operating Characteristics Rx
Operating Characteristics Tx
Specifications. Main Switches & Interfaces.
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USB400 - Installation Guide & User Manual
Understanding your headset.
specifications
main switches and interface