The Williams WF SY5 PRO-4 WAP is a Wi-Fi assistive listening system with WAP/Router and 4 Wi-Fi receivers. The WaveCAST provides true, professional audio quality over Wi-Fi, and features DSP audio processing. Setting up and configuring the WaveCAST for the Wi-Fi network is straightforward and simple. Up to four WaveCAST systems can be connected to the same Wi-Fi network to provide multiple listening channels, supporting 45 users in unicast mode or 1500+ users in multicast mode. The WaveCAST audio processor offers multiple preset audio options. The high-quality audio can be optimized for hearing assistance, music can have high-fidelity playback, and voice can be set for maximum speech intelligibility. Custom pre-sets can also be created to meet specific performance needs.