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
7775 Softphone SK1 UG [6] 1/2/07 12:04 pm Page 15
