Samsung have tried a mixture of canal-type earphones that are inserted in the ear canal and open-type earphones. This new type are called In-ear Fit and comes with the Samsung Galaxy S6 and a few other models. When I first opened the box I put them in and wore them to work but I found they didn’t quite fit properly and were falling out a lot, also the sound wan’t great because of the way they fitted they were hanging out of the ear. When I looked into this later I saw they had L1 and R1 written on the rubber ear tip. When I looked in the box there was a second set of rubber ear tips with L2 and R2 written on them. At first glance they didn’t look too different but up close they L2 and R2 set were slightly bigger. I removed the L1 and R1 rubber parts and replaced them with the L2 and R2, although the sizes weren’t a lot different it did make a huge difference wearing them. They fitted more snugly and the sound was a lot better – Before throwing them away make sure you try the above 🙂