Hello, sorry my english. I have a "koss PortaPro's" and really like the sound quality of this phone. But now I want to buy a headset "In-ear". So I ask: Is there any headset "Earbuds & In-Ear" with quality "equal or better" to the Koss Porta Pro? Purchased a "Philips SHE9000" but I was extremely disappointed. The quality of this phone is terrible. Researched some models of phone, and called me some attention. They are: Shure SE530s Koss KDX300 In-Ear Sennheiser MM 70s Sennheiser CX 300 II I am not an expert on ear phones, so I would know through you. Any of the above models have the quality "equal or better" to the door of the pro koss? Do you suggest some other model phone ear?