Abstract: An apparatus wherein a mounting plate is secured to a support plate, and the support plate in turn including saddle members for securement to a rearwardly positioned post. The support plate includes an upper and lower fastener to permit rotary positioning of the support plate to the mounting plate to orient an impact post rotatably relative to the support plate. The impact post is mounted to a spring hinge front plate, with the spring hinge front plate including a plurality of spring hinge members hingedly mounting the front plate to a rear plate. The front plate is hingedly mounted permitting one hundred eighty degrees of motion of the mounting post securing the impact post. A modification of the invention includes a clutch member joining the mounting post to the spring hinge front plate.

Abstract: Systems and methods are described for outputting audio information via both wired and wireless outputs from a in-flight or in-vehicle entertainment system. An audio output device can include a wireless transmitter and an audio output port. A transmission power of the wireless transmitter can be controlled via a processor based on a measured received signal strength indicator (RSSI) level of a connected slave device and a transmission power of the connected slave device.