height adjustment arrangement and hearing protection unit the present invention relates to a height adjustment arrangement (100) for a hearing protector (10) in a hearing protection unit (1), where the height adjustment arrangement ( 100) comprises an elongate member (130) and a tubular support member (110) connected to the elongate member, wherein the support member provides a substantially hollow interior (111). the height adjusting arrangement (100) additionally comprises a securing member (120), whose securing member (120) is arranged to be moved from an unlocked position, in which position a relative movement between the elongate member (130) and the support member (110) is possible for a locking position in which position relative movement between the elongate member (130) and the support member (110) is prevented. the support member (110) comprises a first locking member (114) in which the second end (112) of the support member (110) is provided with two flanges (115a, 115b) tapering in one direction in the direction of securing member and on which the first locking member and the flanges are axially separated. the securing member comprises a hollow interior with a tapered portion tapering in a direction away from the securing member and a second locking member, wherein the conical portion and the second locking member are axially separated.arranjo de ajuste de altura e unidade protetora auditiva a presente invenção refere-se a uma disposição de ajuste de altura (100) para um protetor auricular (10) em uma unidade protetora de audição (1), onde a disposição de ajuste de altura (100) compreende um membro alongado (130) e um membro de suporte tubular (110) conectado ao membro alongado, onde o membro de suporte proporciona um interior substancialmente oco (111). a disposição de ajuste de altura (100) adicionalmente compreende um membro de fixação (120), cujo membro de fixação (120) está disposto para ser movido de uma posição destravada, em cuja posição um movim
