StarTech.com Bluetooth 5.0 Audio Receiver NFC, BT/Bluetooth Wireless Audio Adapter, 3.5mm/RCA or Digital Toslink Output, HiFi Wolfson DAC - Bluetooth 5.0 audio receiver adapter to wirelessly stream audio from BT enabled device to an audio system (66ft); Analog RCA & Digital Optical outputs - Wolfson WM8524 DAC - NFC pairing up to 8 devices - 24-bit (up to 48kHz) sample rate/576Kb bitrate: