https://www.connevans.co.uk/product/43928137/3PRGPA13/PA---Portable-Hearing-Aid-Loop-System-Providing-Accessibility-for-13-People-with-or-without-Hearing-Aids
PA & Portable Hearing Aid Loop System Providing Accessibility for 13 People with or without Hearing...
hearing aid loopportablesystemprovidingaccessibility