Abstract: A user interaction device, in particular an electronic pen, is disclosed which comprises an elongate outer casing (112) having an axis, a chassis (114) located within the outer casing, a switch having electrical contacts (130) supported by the chassis, and a nib (116) movable relative to the chassis (114) and serving to close the switch when axially displaced towards the chassis (114). In the invention, the nib (116) is attached to the chassis (114) by means of an axially compressible resilient element (144) of which a first end (142) is anchored to the chassis (114) and a second end (146) is anchored to the nib (116), and movement of the nib (116) in a direction transverse to the axis of the outer casing (112) is constrained by the resilient element (144).

Abstract: A vibration dampening speaker mounting assembly includes a flush-mountable frame for mounting to a wall or ceiling, at least one vibration dampening member, and a baffle for supporting a single or multi-driver transducer array. The at least one vibration dampening member is disposed between the baffle and the frame to reduce acoustic distortions coupled to the wall/ceiling from the baffle. Fasteners are provided that permit installation of the baffle to the frame without tools while avoiding significant acoustic coupling between the baffle and the frame through the fasteners.

Abstract: A vibration dampening speaker mounting assembly includes a flush-mountable frame for mounting to a wall or ceiling, at least one vibration dampening member, and a baffle for supporting a single or multi-driver transducer array. The at least one vibration dampening member is disposed between the baffle and the frame to reduce acoustic distortions coupled to the wall/ceiling from the baffle. Fasteners are provided that permit installation of the baffle to the frame without tools while avoiding significant acoustic coupling between the baffle and the frame through the fasteners.