-enriched sound and reliable quality in all aspects of their design. -strong bass generated from powerful driver. -high rated power and great sensitivity response. -stylish color and design withclear sound. Use in phone :- samsung, nokia, micromax, blackberry, htc, sony ericsson, apply, lava, intex, spice, iball, motorola, lg, karbonn ect. Use in all laptops, no mike in this earphone.