They are designed for surface mounting indoors (DS 16S) and outdoors (DS 16SE) and are engineered for mounting heights up to 20 feet (6 m).
In addition, they provide flexible installation options for various applications. These loudspeakers are designed for mounting to vertical surfaces (walls) with a wall-mount bracket. This wall-mount bracket is also designed to mate with the Bose on-wall and in-wall junction box accessories, as well as with some standard US Steel 4" x 4" junction boxes. The wall-mount bracket will mate with the Bose pole-mount kit accessory for attaching the loudspeakers to poles.
The Bose ceiling-mount bracket accessory is designed for mounting these loudspeakers to horizontal surfaces (ceilings).