User Manual

5
Warning: The AW771 built-in charger will charge rechargeable NiMH
(supplied) or NiCd batteries only.
DO NOT attempt to charge any other
batteries except those specified above.
Note: The included NiMH batteries can be charged at any time, without any
adverse memory effect, whereas NiCd batteries must be fully discharged
before they can be recharged in order to avoid a reduction in performance.
For this reason we recommend continued use of the supplied NiMH.
Over time, with repeated use, even Ni-MH batteries will eventually wear out.
If, after a full charge, you notice a) dramatically decreased playing time, b) the
power indicator light begins to dim quickly and/or c) static interference occurs
within a short time of turning the headphones on, it may be time to replace
the batteries.
1. Make sure that the headphones’ power/tuning control button (F) is OFF and
the red power indicator LED is unlit.
2. Place the headphones on the transmitter, ensuring that the charging
contacts (C) on the left ear cup sit securely on the charging contacts on the
transmitter base.
Charging Schedule:
Use: Charge Time: Play Time:*
Initial charge 24 hours 5-6 hours
Average 10-12 hours 3-4 hours
Extended 16-18 hours 5-6 hours
*Play time as shown above reflects use of batteries in good condition.
Note: The charger will not overcharge the batteries if left to charge longer
than shown above. However, if you do not intend to use the headphones for
an extended period of time, it is recommended that you unplug the
transmitter from the AC power outlet.
Note: Battery life depends on frequency of use, time, and care. If you have
questions regarding battery replacement, please contact our Customer Service
Department at 1-800-732-6866.
iii. Charging Batteries: