'The FM radio and JPEG photo viewer found on the NWZ-S710F are nothing special, but both are easy to use and add value to the device.'
'In PC World Test Center audio tests, it netted a signal-to-noise ratio score of 82 decibels--just a shade below the latest iPods and the top-ranked Creative Zen X-Fi --as well as a barely registering harmonic distortion and noise level of 0.01 percent. '
'Even without any of the whiz-bang options or noise-cancelling activated, music is full-bodied and vibrant. '
'The S639F works well one-handed, and the mainly list-based browsing options, with album cover thumbnails, make it easy to track down the audio or video track you're looking for.'
