Sound and Multimedia
The phone features a loudspeaker with stereo sound, unusual in mobile phones of the time, which allows for a more immersive audio experience. Users could select from vibration and downloadable polyphonic or MP3 ringtones. Although it lacks a 3.5mm headphone jack, the device provides acceptable sound quality via its dual speakers. With Bluetooth 1.2 and A2DP, the D520 facilitated wireless connectivity for audio devices, offering users the option to enjoy music on the go.