I picked this up at Office Depot. My version has 2.5 and 3.5mm in one. I thought this convenience was awesome; I could use the buds for home phone, laptop and cell phone. Wrong...the mic on this device is useless. You have to hold it to your mouth for anybody to hear you. Then the clip fell off somewhere in the street. The wire for the left ear is too large and droops down. It looks cheap.So I used it very mildly for a few months on my laptop until the jack wore out and I had to jiggle it for it to work.Most importantly, the sound quality was sub par. Bass is decent, but not good. Some of the high end sounds are missing.The good part is that the gels are great. They really keep the bud in your ears while your on the go. Overall this is a definite no buy.