Support NFC: Built-in chip, you can connect with the NFC mobile phone or other support NFC Bluetooth device directly by touching this receiver. Playing Music on 2 Speakers Simultaneously: With both 3.5mm and 2RCA 2 kinds of connection options, you can enjoy music on 2 speakers simultaneously. Support Dual Audio Port to Connect: Come With both 3.5mm and 2RCA audio port, suitable for more devices (3.5mm cable and 2RCA cable included).