This is a successor to the SV-SD850N, which was awarded a prize last year. Can play music continuously for approximately 100 hours, and comes with a noise-canceling function. When docked with our mini-component stereos, music can be recorded or played and the battery can be charged without removing the SD card. Along with features such as small size, light weight and no sound jumps that the SD card players without built in HDD's have, we were able to achieve a sound quality higher than that of ordinary MP3 players by incorporating a D-sound engine based on high-sound quality codex for AAC and WMA files.