A headset and/or a hearing protection device comprising a ear cup and a waterproof speaker assembly comprised in the ear cup, the waterproof speaker assembly comprising: - a speaker unit comprising a transducer configured to generate an audio frequency signal, - a waterproof speaker housing , wherein the waterproof speaker housing is configured to receive and sealable enclose, in part or in full, the speaker unit in an interior or a cavity of the waterproof speaker housing , and - a waterproof pressure equalization element being permeable to air, wherein - the waterproof speaker housing is configured to receive and/or support the waterproof pressure equalization element , and - the waterproof pressure equalization element is configured to equalize surrounding or ambient pressure changes from the interior or cavity of the waterproof speaker housing , wherein the waterproof speaker assembly comprising a slave membrane configured to release the audio frequency signal to outside of the waterproof speaker assembly and wherein the waterproof speaker housing is configured to receive and/or support the slave membrane , and the waterproof pressure equalization element and the slave membrane are arranged to generally face a same direction towards an interior of the headset and/or hearing protection device, away from an ear of a user. the waterproof speaker assembly comprising: - a speaker unit comprising a transducer configured to generate an audio frequency signal, - a waterproof speaker housing , wherein the waterproof speaker housing is configured to receive and sealable enclose, in part or in full, the speaker unit in an interior or a cavity of the waterproof speaker housing , and - a waterproof pressure equalization element being permeable to air, - a speaker unit comprising a transducer configured to generate an audio frequency signal, - a waterproof speaker housing , wherein the waterproof speaker housing is configured to receive and sealable enclose, in part or in full, the speaker unit in an interior or a cavity of the waterproof speaker housing , and - a waterproof pressure equalization element being permeable to air, wherein - the waterproof speaker housing is configured to receive and/or support the waterproof pressure equalization element , and - the waterproof pressure equalization element is configured to equalize surrounding or ambient pressure changes from the interior or cavity of the waterproof speaker housing , - the waterproof speaker housing is configured to receive and/or support the waterproof pressure equalization element , and - the waterproof pressure equalization element is configured to equalize surrounding or ambient pressure changes from the interior or cavity of the waterproof speaker housing , wherein the waterproof speaker assembly comprising a slave membrane configured to release the audio frequency signal to outside of the waterproof speaker assembly and wherein the waterproof speaker housing is configured to receive and/or support the slave membrane , and the waterproof pressure equalization element and the slave membrane are arranged to generally face a same direction towards an interior of the headset and/or hearing protection device, away from an ear of a user. <EOS>