The present invention is a wireless headset having a removable compliant polymer sheath that is retained in the ear of a user via friction. The wireless headset is reduced in size to earpiece, in which the comfort and sanitation of the user and the life span of the device may in increased by providing a replaceable compliant polymer sheath for the sound tube which is inserted into the ear canal. In alternative embodiments, the sheath and ear canal may mechanically cooperate to retain the wireless headset in the ear canal. The sheath may be easily removed and replaced so as to adapt the length and diameter of the device for the needs and comfort of different users, allow safe and sanitary use of one wireless device by more than one user, and allow for easy repairs and refurbishments.