I m using this set since 4 month its awesome experiance with bingo 21. It is valuable mobile phone . dont confuse if you want to buy this set. There is no heating problem. No hanging problem. Fast running. And build quality is awesome. U feel awesome during using. There is only problem sim slot 2 is not support 3g and 4g. Sound quality is good. And battery backup is avg. As per 2200mah. Screen is quite moderate but there is extra waste size . Camera is 8 and 5mp is gud and night picture is good but not excellent