User guide

15
BT Softphone SK1 – Edition 05 – 19.01.07 – 7775
General information
Headset specifications
Stereo headset CM400
Cord 2m long
Mass 120 g (including controller)
Receiver
Size 40mm diameter
Type Open air dynamic driver unit
Max. input power 1OmW/60mW
Impedance 32 ± 15% at 1 kHz, 1 V
Sensitivity 116± 3dB(3mW/ 1 CM)
Frequency range 140 - 20,000 Hz
Microphone
Design Flexible boom microphone
Type Electret condenser
Open circuit voltage -47dB (OdB = 1 V/Pa)
Frequency range 20 - 20,000 Hz
USB controller AU400
Frequency range 20 - 20,000 Hz (headphone)
100 10,000 Hz (microphone)
Data resolution 16 bit
Sampling rate 48 kHz Stereo
Operating characteristics Rx
Receiver gain 14dB Max.
Output power 35mW Max.
THD +Noise <0.4% @ P.)=30m W20~20,000 Hz
S/N @ TH D <0.4% 86dB
Master volume
control range 0~46.5dB attenuation
Operating characteristics: Tx
Microphone gain 20dB Max.
Volume control range + 12dB ~–34.5dB, I.5dB step
Power supply USB bus power compliant (5V,
10OmA)
Dimensions (excluding projections)
approx. 28x65x18mm
(w/d/h)
Operating environment
Compliant operating systems:
Windows 2000/Windows Me/Windows XP
Declaration of Conformance
The Declaration of Conformance is available from
www.easidirect.co.uk/softphone
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