User's manual Two Line Speaker Phone with Caller ID and Call Waiting 993
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ATT993
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Appendix
T
echnical specifications
Operating temper
ature 32°F — 122°F
(0°C — 50°C)
Power adapter input: A
C 120V 60Hz
Power adapter output: A
C 9V
, 300mA
Backup batt
ery:
Alkaline 9V
Headset jack:
2.5mm, 32-150 ohm
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