Honda ODYSSEY 2019 Owner's Manual page 690

uuRemote Control and Wireless Headphone Care
■
Wireless Headphone
If there is no sound coming from the wireless headphone, replace the batteries.
Cover
Batteries
688
* uReplacing the Battery
Battery type: AAA
1. Remove the screw.
2. Open the cover.
3. Make sure to replace the batteries with the
correct polarity.