Aspects of the present disclosure relate to playback devices having a non-flat surface and comprising a flexible electronic assembly conforming to that surface. The flexible electronic assembly may include (i) a flexible substrate having a first portion and a second portion, (ii) an array of capacitive touch sensor electrodes arranged on the first portion, and (iii) a plurality of conductors that are electrically coupled to the array of capacitive touch sensor electrodes and that extend onto the second portion. The first portion may include a plurality of cutouts. Each cutout of a first subset of the plurality of cutouts may be positioned between a respective set of two or more electrodes in the array of capacitive touch sensor electrodes. Each cutout of a second subset of the plurality of cutouts may be configured to reduce a wrinkling of the first portion when conforming the first portion to the non-flat surface.