Christie's long-eared bat has pale gray-brown fur, a whitish underside, and long ears. In AlUla, records come from dry areas as well as riparian and oasis sites.
The AlUla guide describes a gray-brown back, whitish underside, pale sparsely furred face, and very long translucent ears that meet at their base.
AlUla records include roosts in caves, buildings, rock crevices, and tunnels. The bat feeds mainly on moths; the guide also reports gleaning prey and hovering while it feeds.
An extinction-risk assessment has not been added yet.