Can I use the system without any problem even if there is a frequency band that I cannot hear?

You can.
By connecting to the dedicated application ("αble-EQ") via Bluetooth, you can make individual settings such as increasing the treble range only.

However, please keep in mind that it is not possible to make inaudible sounds audible.


■About the dedicated application ("αble-EQ")：

"αble-aid" purchasers can use all functions for free.

iOS：http://u0u1.net/qw1y
Android：https://play.google.com/store/apps/details?id=jp.co.able