now a days you can use updated versions of voice command for plenty of functions. You can start any programme, check battery level, play voice controlled media player, get reminders and many more with the help of voice command.
About voice controlled media player: You can use your voice to select tracks as per your choice. If you come across any new or unfamiliar song, you can just ask, "What song is this?" and the device will inform you about the name of song and artist.