Unpacking; Charging The Headphones' Battery - Sony MDR-IF420RK Operating Instructions Manual

( Getting started

Unpacking

Check that you have the following
items:
• The transmitter
• AC power adaptor
• Connecting cord (phono plugs ˜
stereo mini plug)
• Unimatch plug adaptor (stereo mini
jack n stereo phone plug)
• The headphones
• Ni-Cd rechargeable battery
NC-AA (HJ)
4
Charging the
headphones'
battery
Using the headphones for the first
time
The headphones are powered by either
a supplied rechargeable battery
NC-AA (HJ) or a commercially
available R6 (size AA) battery.
When you use the headphones with the
supplied rechargeable battery
NC-AA (HJ) for the first time, charge
the battery in the following manner.
NC-AA (HJ) is applicable only for Sony
cordless/wireless headphone systems.
Never use for any other purpose.
1
Open the battery compartment lid
on the left inner side of the hanger.
2
Install the supplied rechargeable
battery with its + and – matched to
those of the battery compartment.
Do not use a rechargeable battery
other than the supplied one.
3
Close the battery compartment lid.