Abstract: Disclosed is a hearing. The hearing device comprises an ear cup. The hearing device further comprises a headband being configured to rest on the user's head and a hinge arm. The hinge arm comprises a hinge center arranged at the earcup defining a rotating axis of the ear cup with respect to the headband, whereby the hinge arm can rotate through an angular interval from a rest position to a variable use position. The hearing device further comprises a force element configured to bias the hinge arm towards the rest position. The hinge center is arranged offset from a center of the ear cup. The rotating axis is configured to pass through the center of the ear cup.

Abstract: The invention provides an autonomous surface treatment vehicle, e.g. a floor cleaner, with an autonomy system navigating according to a map, a scanning sensor to detect a position of an obstacle within a scanning zone and generate a detection signal. A safety system is arranged to generate a safety stop in case the detection signal indicates an obstacle within a safety zone. The safety system can enter a special mode of operation, e.g. upon request from the autonomy system, where a special safety zone selection algorithm selects the safety zone e.g. from a special set of pre-determined safety zones. Especially, such special mode can provide safety zones with a relaxed speed limit in combination with a restricted direction limit, so as to provide a faster driving near a wall or similar known obstacle.

Abstract: The invention provides an autonomous surface treatment vehicle, e.g. a floor cleaner, with an autonomy system navigating according to a map, a scanning sensor to detect a position of an obstacle within a scanning zone and generate a detection signal. A safety system is arranged to generate a safety stop in case the detection signal indicates an obstacle within a safety zone. The safety system can enter a special mode of operation, e.g. upon request from the autonomy system, where a special safety zone selection algorithm selects the safety zone e.g. from a special set of pre-determined safety zones. Especially, such special mode can provide safety zones with a relaxed speed limit in combination with a restricted direction limit, so as to provide a faster driving near a wall or similar known obstacle.