The arrangement (1) has a body (2) comprising a front end (4) and made from absorbing material e.g. fiber material and foam material, and a casing (3) inserted into the body. The casing has a projection i.e. fin (6), at a circumference along a spiral line of the body, where the casing is inserted into the body through combined rotational and translational movement of the casing. A vibration generator and a sensor are arranged in the casing, and a flexible cable (14) is fastened to the casing. Barbed hooks (16) are formed at the casing and inserted into the material of the body. An independent claim is also included for a method for manufacturing an arrangement.흡수재로 만들어진 본체(2)와, 상기 본체에 삽입된 캡슐(3)을 가진 조립체가 개시된다 캡슐(3)은 나선을 따라서 상기 캡슐의 원주 상에 배열되는 적어도 하나의 돌출부(6, 11)를 가진다. 조립체를 제조하기 위하여, 캡슐(3)은 조합된 회전 및 병진 운동에 의해 본체(2) 내로 나사 고정된다.