A wireless audio communication system and monitor is disclosed, comprising a transmitter and a receiver. The present invention also relates to an image forming apparatus provided with the electrophotographic photosensitive member. The system includes an input module for receiving a plurality of parameters from a process for manufacture of a substance or object. The impeller is mounted to an external surface of the brake drum for rotation with the drum about an axis of rotation. The invention also relates to a method changing the energy distribution of a thermal reservoir wherein thermal energy is transferred from at least one first section of the thermal reservoir to at least one second section of the thermal reservoir. More specifically the invention relates to a versatile, effective convenient to apply fabric treatment applicator and its method of application.