Listen to music on the go with the Sony NWA45 MP3 player with Bluetooth. You can wirelessly connect the player to Bluetooth headphones, so that there are no cables getting in the way when listening to music. 16GB offers enough room for your favorite songs. If you still need more, easily expand the memory with a microSD card. The color screen displays the music, the volume, and the battery level. You can control the MP3 player using the touchscreen. The battery lasts 45 hours and is charged with the included USB cable.