Segmented screens prevent dust ingress in externally ported speakers by utilizing housing channels and ledges to eliminate complex seals.
A metal bracket anchors the electronics board to improve stability and robustness while shielding against interference.
Electromagnet drives screen vibration via magnetic circuit system to resolve high energy consumption and limited driving force trade-offs.
Headrest loudspeaker deploys an air bag upon impact detection to prevent injury from hard speaker components during vehicle collisions.