An auxiliary photographic lens and lens holder bracket for an existing portable cellular phone having a camera function therein. The powered dispenser is held in one hand and dispenses the material in accordance with a user selected one of the plurality of different user selected dispensing control modes. In addition, the first node can transfer the certain packet to the second node to process the certain packet by using the algorithm. The arrow rest includes a activator body with a locking component to releasably secure the launcher in a lowered position in order to substantially eliminate any bounce back of the launcher and possibility that it may contact the arrow after the arrow is fired. The central device within the vehicle is a mobile router equipped with routing capability. The substrate has a substrate body layer, electrodes disposed on the substrate body layer, and a glass ceramic layer disposed on the substrate body layer so as to cover a portion of the electrodes.