The P1X3M1011EU extension cable for SONOS will allow you to put you SONOS speakers exactly where you want, not just where their power cables will stretch to. The cable will allow you to get rid of the ugly extension blocks and choose this bespoke, neat...
Flexson FLXP3X1M1021EU EU 1m Extension Cable (Not PLAY:1) Single in Black
Flexson FLXP1X3M1021EU EU 3m Extension Cable for SONOS PLAY:1 Single in White
Flexson FLXP1X3M1011EU EU 3m Extension Cable for SONOS PLAY:1 Single in White
3M Extention Cable for Sonos Play 3 Play 5 Gen 1&2 Playbar and Sub