Abstract: A laundry treatment composition supply system to supply laundry treatment composition to multiple washing machines. The system can include a first supply container and a second supply container. Each of the supply containers can be operably engaged with a level sensor. Upon a low liquid level signal from a sensor associated with a container, a controller system can switch supply of the laundry treatment composition from the container having a low level to another container. The laundry treatment composition can be pumped from one supply container or the other supply container.

Abstract: A method and system for providing improved confined area audio amplification is provided. Designed to meet the requirements of classrooms, conference rooms and offices, this new invention provides improved signal-to-noise ratio, improved system redundancy, and higher voice audio quality than is offered in previous systems. This invention utilizes infrared as the wireless communications channel, and does so with two receivers, a master and a slave to provide redundancy in signal reception and thereby solving one of the long standing problems with line of sight communications systems. This invention also employs a pulse position modulated signal which has higher noise and interference immunitity that is available with prior systems. This invention is flexible with a lightweight, wireless, battery operated transmitter packaged in a necklace type of holder, suitable for wearing around the neck of the speaker.