Lovely earohones. I'd bought them to use in gym. And they are great. Before I had Panasonic earphones, but they fitted terrible, I always had a pain in my ears. Sony earphones have 3 sizes of soft hangers and 3 sizes of silicone rubber earbuds ,so you can choose which will fit you better. And after comparison Panasonic and Sony I can say that the second earphones have an amazing bass sound. Someone can say that the sound is low. It's not true. Sound is high enough, but high sound (like on my old Panasonic earphones, which were loud, but I sound after comparison was really poor) doesn't meat really quallity bass sound. My husband wants the same Sony earphones too.