Vehicle seat headrest equipped with audio speaker units

A headrest for a vehicle seat comprising

• a support configured to receive and support the head of a seat occupant, and, connected to the support, at least one speaker system comprising:
• a speaker unit comprising a loudspeaker received in an airtight housing,
• a guide system for guiding the speaker unit relative to the support of the headrest,
• the guide system being configured so that the speaker unit can transition from a first usage position to a second usage position, and vice versa, the transition from the first usage position to the second usage position, and vice versa, corresponding to a movement combining a translation of the speaker unit and a rotation of the speaker unit,
• wherein the guide system is configured so that the transition from the first usage position to the second usage position, and vice versa, corresponds to a translational movement of the speaker unit along a first axis combined with a rotation of the speaker unit about a second axis substantially perpendicular to the first axis, and
• wherein the guide system is configured to ensure the transition from the first usage position to the second usage position, and vice versa, in a movement combining a translation of the speaker unit along the first axis and a rotation of the speaker unit about the second axis, and wherein the guide system comprises:
• at least one guide rail oriented along the first axis, a speaker unit support mounted so as to slide relative to the guide rail, positioned a first distance to the support of the headrest when the speaker unit is in the first usage position and a second distance from the support of the headrest, greater than the first distance, when the speaker unit is in the second usage position, the speaker unit is connected to the speaker unit support via a pivoting connection having a third axis parallel to the second axis, and a system of cam and cam race respectively integral with the guide rail and the speaker unit or vice versa, the system of cam and cam race configured to change the orientation of the speaker unit when the speaker unit support is slid between the first usage position and the second usage position.