This sound installation contains 50 mobile phones with 50 different ring tones, which are about home and returning home, regardless of genre and origins. Those 50 mobile phones ring randomly and unilaterally in a dark room. Phones used to be deeply connected to home so I take a phone as a symbol of home, which means mobile phones as mobile homes. However despite the fact we carry the tool of communication with us all the time, we are now living in the independent and individualistic world and we tend not to communicate each other as often as we used to be.