The Williams Sound FM 558 PRO D is an FM+ large-area dual FM and Wi-Fi assistive listening system with Dante that comes with an FM T55 D transmitter, 4 PPA R38N receivers, 4 earphones and 2 neckloops, 2 chargers with rechargeable batteries, a remote coaxial antenna, an ADA wall plaque and a rack panel kit for professional installation.

• Supports 45 users in unicast mode or 1500+ users in multicast mode
• Includes Dante Input and 4 FM R38 receivers
• Single-channel audio streaming over Wi-Fi
• Up to 1000 foot operating range
• Features coaxial cable and rack panel kit for professional installation
• Audio presets - hearing assistance, music, voice, and custom
• Professional audio inputs: 1/4"/XLR, phantom power, line-level output jack
• Works with existing Williams Sound FM receivers
• Works with free WaveCAST iOS or Android apps
• True professional audio interface
• 16-bit DAC provides a 48Khz sample rate
• 10 segment LED bar graph
• Adjustable RF power output
• Professional DSP audio platform
• 2-year warranty

• (1) FM T55 D Transmitter
• (4) PPA R38N Receivers
• (4) EAR 022 Surround Earphones
• (2) NKL 001 Neckloops
• (2) BAT KT6 2-Bay Chargers and Rechargeable Batteries
• (1) ANT 005 Remote Coaxial Antenna
• (1) IDP 008 ADA Wall Plaque
• (1) RPK 005 Rack Panel Kit