Nothingness seems like... nothingness

After whatever just happened I'm now stuck in some kind of void? Its neither dark not light and I'm really not sure how to describe it.. but I found this mephone! So.. I guess that's a win in my book! I'm pretty sure I dont need a charger.. but if I ever do run out of batteries I'm kind of screwed! Anyone know how to get out of here by the way?..