Altec Lansing PLTUHS301B UHS301 2.5mm Stereo Headset with 3.5mm Adapter & Pouch Stereo headset that is comfortable with outstanding sound quality.Connectivity Technology: Wired One-touch control and integrated call/answer end button mounted on the in-line microphone pod Soft-fitting silicone earbuds rest comfortably in the ear and deliver passive noise reduction and high fidelity at lower listening levels