I have bought the Micromax Canvas 6 Pro E484 recently and I must tell you that the sound reception is good even in the vocal background we can hear the voice clearly.
As other Micromax devices this is too very easy to use and user friendly too. the style and design of this smartphone is affordable as compared to the other devices in the same segment.
4G network in Jio, Vodafone, Reliance and Airtel is supported, it has 16 GB memory but the front camera is only 5 mega pixels and the rare camera is 13 mega pixels.
Battery life is not good, it only last 7-8 hours and it is much shorter then the other smart phones in the same segment.
Value for money is not so good as one can check other smartphone of other brands in same price band.