The oppo a57 is good product made by the oppo.
this phone have good sound quality even on music gaming and video. this phone have loudspeaker and also 3.5 mm audio jack.
this is very cool in design 7.7mm thin that gives you a trendy look.
this phone occupied with the 1.4 GHZ octa core processor with the ram pf 3gb and gives the internal storage of 32gb.
run and the android 6.0 marshmallow
the display is 5.2 inches with the resolution of the 720×1090 pixel.
the drability of this phone is long lasting.
the price for this phone is bastest for this quality.