Bought this Mp3 player and the sound is awesome. Noise is nowhere in the player. Bass is good with sony extra bass headphones. Excellent sound quality, the earphones given with the device may not work well with other devices, but it works just fine with the Walkman. Battery backup is too good and last for about 20 hours. It can be connected to bigger audio players, speaker or car system through aux cable. FM radio works well and it has aslo got FM recording. Song transfer is user friendly. We just need to plug the USB into laptop and transfer the songs, just like a pen drive. A overall good product and ot can store upto 700 songs.