Hey guys Now I am telling u some line on of the best mobile that is SAMSUNG GALAXY J7. Its sound is completely like home theater when you use ear phone .audio and video is very nice but an average like other samsug galaxy.It is easy to use. this mobile has 5.5 inch Super AMOLED Touchscreen which is good but this mobile has only 720x1280 pixel resolution which is not give 1080 p full HD video on it. the other specification are as follow: ANDROID v5.1 Lollipop operating system. 2 GB Ram Dual micro sim and one most thing that 5300 mAh lithium battery.which gives very good battery backup. But main problem of this mobile that in 30% brightness the display create a large problem of blinking. so please the company must focus on this problem overall the value of money is about good to purchase it.