The Sony Walkman NWZ-S618F is a digital media player that allows its users to store 2000 songs on the 8 GB built-in memory module. This media device can also offer a battery life up to 33 hours. In addition, the model is available in black with the following characteristics: 6.09 cm width, 10.92 cm height, 0.83 cm depth, 114.81 gm weight.