A wireless device, such as a remote control unit, may include an internal fingerprint identification unit. The spring actuated pool cue includes a cue having a first portion and a second portion. In addition, the terminals may be configured to be inverted when operating in either direction. The tubular portion forms a cylindrical opening with an inner diameter slightly larger than the outer diameter of the tubular pylon. The control circuit is configured to determine the on-time period of the switching device based on the voltage signal and the difference signal. An air spring is mechanically linked to the cam lever and the pressure pad such that the air spring absorbs a portion of the first stroke distance.