Since I got lyf wind 7s as the fisrt day I screwed with its battery back up.sound system is very bad compared to other phones, it sounds very harsh when I play music.the worst sound system I founded ever.then comeing for camera clarity it is not so good compared to others , even though they have given 7megapixel back camera and 5 megapixel front camera , tha clarity is not so good . if we use internet the battery get heats badly so dat we cant use phone for long time, the phone gets hang while useing the mostly problem I found