1、1. NFC Bluetooth receiver: 2、①Support NFC: Built-in chip, you can directly connect with NFC mobile phone or other Bluetooth devices that support NFC by touching this receiver. 3、②The first receiver with ambient light: When the power is turned on, our NFC Bluetooth receiver will have colorful ambient light to light up. The next job is to give you a feeling of rendering the atmosphere, and can also help you operate auxiliary equipment in the dark. 4、③Support three audio port connections: including 3.5mm and 2RCA audio ports, suitable for more devices (including 3.5mm cables and 2RCA cables), and can also support U disk playback. 5、④Remote wireless connection: The maximum effective distance is 15 meters/49 feet, and it can control long-distance music playback. 6、⑤ Support automatic opening/closing: use the charger cable to connect to the car or other power sources. When the car is started or powered on, it will automatically turn on and automatically connect to the last connected device. When the car is turned off, it will automatically turn off. 7、⑥ The latest Bluetooth 5.0 version: compatible for Bluetooth 5.0, backward compatible for Bluetooth 4.2 / 4.1 / 4.0 / 3.0 / 2.0 / 1.0. 8、2. 4 in 1 Bluetooth 5.0 transmitter receiver: 9、①Transmitter mode: wirelessly transmit audio from a non-Bluetooth TV, home stereo system or CD player to a Bluetooth headset/speaker/receiver. 10、②Receiver mode: wirelessly transmit audio from a Bluetooth-enabled phone, tablet or computer to a wired stereo, speaker or headset. 11、③AUX output mode: Through the car AUX interface, a car without Bluetooth function can easily play music on a mobile phone or tablet. 12、④USB output mode: read the USB interface through the car, this is a car without Bluetooth function, you can easily play music on your mobile phone or tablet. 13、⑤Application range: used in cars, stereos, tablet computers, earphones, computers, bluetooth TVs, etc.