WR780 Bluetooth Wireless Headphones
Battery Replacement Instructions
The battery for the WR780 is contained under the access cover on the right rear side
of the headphones, as shown in this image:
1. With a pointed tweezers or scribe, press into the
soft round screw cover just below the battery
symbol on the battery compartment cover.
Carefully pry up to remove.
2. Using a T-10 Torx driver, remove the screw
holding the battery access cover.
3. Using a straightened, fairly heavy paper clip
and a pliers, fashion a small approximately
3/16 inch hook at the end.
4. Hook the end of the paper clip into the
bottom of the hole where the screw was
removed with the hook facing toward the
bottom of the access cover.