Stereos or some other way to play music in your apartment. Nothing complex, maybe just an item that'll occasionally throw off a one line echo (set by the owner or just someone nearby) about the type of music you're listening to, sort of like a voice description.
Some indistinct, bass-heavy rhymes sound from a JuicyVee Sound System.
Grinding industrial guitar and violent lyrics sound from a JuicyVee Sound System.
Haunting classical music with heavy violins sounds from a JuicyVee Sound System.