A phase mixed thermoplastic polyurethane elastomer is provided for use in tranducers including underwater transducers, sonars and other electrostriction driven devices. A damage reporting module may allow a user to provide information indicative of a damage description and damage location. In a first embodiment, disk-like magnets are received in channels of mating elongated body members of like configuration. The light-emitting module also includes a light-absorbing substance, absorbing light in at least a wavelength band from 570 nm to 590 nm, which is present in the optical pathway between the light-emitting element and the second wavelength converter, the second wavelength converter not containing the light-absorbing substance.