Bluetooth 5.0 audio receiver to wirelessly stream audio from BT enabled devices to an audio system, Upgraded version of our popular receiver BT2A - Analog 3.5mm jack/Digital Optical (SPDIF) outputs to amplifier, 3.5mm to RCA and 3.5mm stereo extension cable Incl - Wireless adapter w/ HiFi Wolfson WM8524 Digital to Analog converter (DAC) delivers high quality sound - Up to 66ft/20m (line of sight) - NFC pairing up to 8 devices - Supports 24-bit (up to 48kHz) sample rate 576Kbits bitrate.