The invention relates to communications devices for reduced energy communications in an ad hoc network. The device is comprised of a flat, rectangular body having first and second opposed sidewalls; a flexible cord; and a scent source. Next, adjust the luminance of the de-interlaced pixel by a luminance difference between the average luminance of the current block and the average luminance of the reference block, such that the luminance of the de-interlaced pixel is more appropriate and the display quality is improved. Access to the medium interaction level function of the vehicle multimedia system may be allowed, when the passenger occupancy signal indicates that the passenger seat is occupied with a passenger and the gear signal indicates that the gear ratio of the transmission corresponds to the motive gear. In the open position gas transfer between the chambers andor pressure equalization in or differential pressure adjustment of the gas pressures in the chambers are permitted.