Excerpt: Sony's Walkman NWZ-S544 looks and feels classy thanks to its shiny red metal design. It has a slightly bigger screen than the NWZ-E443 and built-in speakers, which are activated using a dedicated switch. As expected, they sound weedy and distort easily. Vocals sound clear on the included earphones, but audio quality is otherwise disappointing. Instruments are bright and harsh, with not enough bass, but there was no distortion when we boosted the bass using the equaliser.