Today we all know eaaraphone is very essenial part of life we can live without it evn we dont pick our phn without earphone so we all buy this.i will give you some tips on buying earphones when we buy then firstlt dont purchase less expensive earphone check the quality of earphone beacuse cheap arphone can damage our ear when our ear will damage then we cant live iys our wastage of living.so fitstly check thier quality must buy the good company of earphone .that will never harm our ear evn we can wear more than 4 or 5 hours.aftr check their mike we can easily hear the voice of second persn from thus or not.if not then reject it take other I suggst to ol use the earphone of better company which will give you more comfort to hear anything.