The Williams AV FM+ 557 system is a professional-grade assistive listening solution designed to deliver high-quality audio streaming over both FM and Wi-Fi from a single, easy-to-manage device. This all-in-one system includes four R37 receivers and the powerful FM+ T55C transmitter, making it ideal for venues looking to meet ADA compliance while offering flexible listening options for their guests.
At the heart of the FM+ 557 system is the FM T55C transmitter, which features multiple digital audio input options, an intuitive OLED display, and network control capabilities for streamlined setup and operation. It allows venues to simultaneously broadcast audio over FM (72-76 MHz) and Wi-Fi, giving users the freedom to listen with a traditional receiver or via their own smartphones using a dedicated app.
The included R37 receivers provide reliable, user-friendly performance with simple channel selection via a seek button and access to 17 pre-set wideband channels between 72.1 – 75.9 MHz. This ensures crystal-clear audio reception in a variety of environments, from houses of worship and conference halls to theaters and classrooms.
The FM+ 557 system is fully expandable to accommodate any number of listeners and includes an ADA wall plaque to help facilities clearly communicate the availability of assistive listening services. Whether you're upgrading your current setup or installing a new system, the FM+ 557 is a future-ready solution that enhances accessibility for all attendees.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
