According to embodiments of the present invention, a data source provides data on multiple channels to a data sink. The aerosol dispenser has an inner surface comprised at least in part of tin-plated steel. Lower edges of the lower side portions of the siding boards are formed at different heights with the boundaries of the vertical joint grooves. Such arrangement provides further protections to the owner of the lost or stolen phone, reduces the loss and stops the illegal disposal of the stolen goods. The improved backskin has a toughness and melting point temperature sufficiently great to avoid any likelihood of it being pierced by any of the components that interconnect the solar cells. The press has inner and outer dies and a former rod opposing the inner and outer dies.