I am using this mobile from past 4 years I bought it during the starting of my b.tech 1st year now iam 4th year almost 4 years.it is still effectively working the worst thing about it is about battery life it dont come more than 2hr which caused many problems.i have a habit of listening to the music while traveling to the college because of this mobile I got bore. I had a habit of studying the mobile as this is no good in battery life cause me low at studies.worst experence with this product