A housing suitable for a mobile device comprises a pouch or case 1 including cleaning material 3 arranged to clean the surface of the mobile device as it is slid into or out of the pouch 1. Shock-absorbing material (5, fig.1c) may be provided between a layer of cleaning material 3 and the pouch or case 1. A window (7, fig. 6) may be provided in the case, through which a screen of the mobile device is visible. The pouch 1 may be reversible for use as a cleaning pad or mitt when the cleaning material 3 is on the outside (see fig 4b), and may include a pocket (6, fig.4b) for holding the mobile device when the pouch 1 is reversed.