A user is enabled to seamlessly switch between networks andor devices, during a content delivery session. The exhaust temperature is estimated based on the temperature inside the cylinder at a time of opening of the valve, the temperature inside the cylinder being itself estimated from an angle of rotation of the crankshaft, cylinder pressure, volume of air injected into the cylinder, and flow rate of recycled gases. Embodiments of the support structure provide for the two display devices to be positioned in a landscape andor portrait configuration. The sensor may be part of a force measurement system, a strain gauge system or a drilling jar system. The battery capsule is made of a similar water-proof material and is sealed so as to prevent the battery pack from malfunctioning during various weather conditions.