JVC Headphones Manager is an app to control the JVC HA-ET90BT Wireless Headphones.
The following handy functions are available on this app.
FIND (Find earphones)
Notifies the whereabouts of the earphones by sound and light.
Allows you to check the remaining battery power of the earphones displayed in 10 levels.
SOUND MODE (FLAT/BASS/CLEAR)
Allows you to select a sound quality from 3 sound modes according to your preference.
Flat: Pleasant sounds with balanced low to high frequencies
Bass: Uplifting sounds with low frequencies boosted
Clear: Sounds with mid (vocals) to high frequencies stood out
For details on using this app, please refer to the Web Manual of HA-ET90BT.