[3-IN-1 DESIGN]: Support bluetooth receiving (RX), bluetooth transmitter (TX), FM transmitter mode (87.5-108MHz). Equipped with HD LED display, working status and Bluetooth mode are clearly visible. With multi-function buttons, one-key switch mode, or play/pause music, simple operation. Built-in high-definition microphone, support wireless music listening, hands-free call, navigation, let you drive more safely[WIDE COMPATIBILITY]: Support NFC function, connect Bluetooth when the mobile phone is close to it (mobile phone needs to have this function). As a bluetooth audio transmitter, it turns non-Bluetooth TV, PC, laptop, tablet, etc into bluetooth functions. Enjoy the wireless tech life. Support 5-8m infrared remote control, easily control multiple functions[BLUETOOTH 5.0 HI-FI SOUND]: It features advanced Bluetooth V5.0 chip to ensure Hi-Fi stereo lossless Bluetooth audio signal for music streaming to AUX or RCA input speaker, car or home stereo system. Support aptx Low Latency. Stronger compatibility and stability, wireless range is more than 10m / 33feet[MULTIPLE INTERFACE OPTIONS]: Built-in digital to analog chip, support 3.5mm AUX, RCA, digital optical, coaxial, USB (memory card), TF interface. Comes with AUX cable, RCA cable, USB charging cable, it can satisfy all of your connection needs and match with various audio devices with both Bluetooth and non-Bluetooth function[RECHARGEABLE & EXCELLENT BATTERY LIFE]: Built-in with 500mAh battery that supports the receiver for non-stop streaming up to 8-10 hours, long standby time of 30 days. Can be used while charging. Enough for music and hands-free call in a long road journey. Comply with safety certification, longer service life[NOTE]: The default setting is RX after booting. To connect to the Bluetooth playback device, you need to switch to TX. Double-click the product power button to switch. TX flashing is search, Bluetooth name is M6, and it is connected when it is always on