My samsung galaxy J7 is one month old and is one of the unique model of samsung .Sound receptor is very good with clear voice.Its user friendly doesnt heat when charging.The design is very professional and one of its main feature is you can split screen for multitasking work .You can use 2 apps at the same time.Its price is also very genuine with awsome features.I feel great when I see this mobile in my hand.So if you ate planning to buy a samsung model, I will strongly revommend to go for Samsung Galaxy J7