Article ID : 00231524 / Last Modified : 09/27/2019

There's a difference in volume between the left and right sides, or the bass (low frequency) sound is insufficient on the WF-1000XM3 earbud headphones

    If you feel that the bass (low frequency) sound is low or there's a difference in volume levels between the left and right sides of the headphones, change the earbuds to another size that comfortably and snugly fit both ears.

    Note: Size M earbuds come attached to both sides of the headphones at the time of purchase.