A charger unit for an electronic device that includes a housing, a plurality of charging contacts provided on the housing, and a recess provided in the housing, preferably on a rear face thereof. Each of the tube bundles is an independent tube bundle subassembly forming an integral unit having at least one heat exchanger tube with two axial tube ends. Both orthogonal and preferably tilted display screens are employed to receive the deflected beam. The image capture component’s field of view is generally perpendicular to the guide tube’s longitudinal axis.