Patent ID: 7804975

Claim:
A device comprising: a housing to be inserted into an ear of a user, said housing comprising: a lateral end defined by being a part of the housing which is directed towards surroundings if the housing is inserted into the ear, a medial end defined by being a part of the housing which is directed towards the inner ear of the user if the housing is inserted into the ear, said medial end comprising at least a medial opening, a housing section defined by being a part of the housing which is between the lateral end and the medial end, wherein the entire lateral end of the housing and at least part of the housing section to be inserted into the ear of the user are covered by a cover element that is exposed to potential wind streams from the outside of the ear when the device is in the ear; wherein the cover element is made of reticulated foam; and wherein the cover element has the property of compression load deflection at 25% from 0.2 to 0.5 psi, compression load deflection at 65% from 0.35 to 0.75 psi, and at least one of the following properties: thickness from 1 to 4 mm; pore size from 0.1 to 0.5 mm; pore density from 50 to 120 pores per inch (ppi); tensile strength from 10 to 50 psi; elongation above 200%; water-repellant (hydro phobic); olio phobic.