Sennheiser S1 NOISEGARD, User Manual

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Putting the S1 DIGITAL into operation
S1 DIGITAL | 9
Power supply via two batteries/rechargeable batteries
1 Open the cover of the battery compartment on the control unit.
2 Insert two AA size batteries/rechargeable batteries. Observe correct
polarity.
3 Close the cover of the battery compartment.
When you switch the headset on (see page 16), the Power LED
H
provides
information on the remaining battery/rechargeable battery capacity.
If the battery capacity is low, the headset automatically switches off to
protect the batteries/rechargeable batteries from total discharge and
leakage.
왘
Replace the batteries or recharge the rechargeable batteries.
LED lights up yellow : The battery/rechargeable battery capacity is suffi-
cient.
LED lights up red : The batteries/rechargeable batteries are flat.
Type of use Type Operating time
NoiseGard
TM
/digital
Alkaline batteries/recharge-
able batteries approx. 25 hrs
Lithium batteries approx. 40 hrs
NoiseGard
TM
/digital
and Bluetooth technol-
ogy
Alkaline batteries/recharge-
able batteries approx. 15 hrs
Lithium batteries approx. 25 hrs
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