Charging the accupack For charging the accupack, place the
headphones into the transmitter’s charging compartment (nb: make sure the headphones are inserted the correct way round. The Sennheiser logo on the headband must be readable looking from the front - see diagram.
The charging contacts are on the RH earpiece of the headphones - these are placed on the corresponding contacts in the LH indentation of
the transmitter, the one next to the “charge” light). The red LED on the transmitter must light up to show charging is taking place.
Always store the headphones on the transmitter to ensure that they are fully charged when they are needed. The headphones are automatically switched off by the charging process.
BA 151 spare accupack
When the headphones’ accupack is going flat (noise, interference and distortion are sure signs of a flat accupack), recharge the accupack. After an initial charging of 24 hours, the normal charging time is 14 hours. A fully charged accupack has an operating time of more than four hours.
If you wish to use your headphones for more than four hours of continuous operation, we recommend purchasing a spare accupack. Always store the spare accupack in the charging compartment at the back of the transmitter to ensure that it is fully charged when it is needed. Only use original Sennheiser accupacks – accupacks from other manufacturers may cause damage to your headphones and will invalidate the guarantee.
Additional BA 151 spare accupacks can be charged via the L
Before disposing of an old and exhausted accupack, make sure that it is totally discharged by using it until the device switches off. To protect the environment, only dispose of totally exhausted accupacks.
Additional information
The audio transmission technology used with this device is basically that of a radio. According to today’s scientific knowledge, the radio waves emitted by this device are not harmful to humans or animals.
ATTENTION: LISTENING AT HIGH VOLUME LEVELS FOR LONG PERIODS
CAN PERMANENTLY DAMAGE YOUR HEARING.
This device has been designed for use with stereo devices. For connection to mono devices, please use a stereo to mono jack plug available from most audio accessory shops.
Use a soft cloth or, if necessary, a damp
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Wireless RS
