[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 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 Hi-Fi stereo lossless Bluetooth audio signal for music streaming to AUX or RCA input speaker, car or home stereo system. Support Low Latency. Stronger compatibility and stability, wireless range is more than 10m / 33feet [MULTIPLE INTERFACE ]: 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 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. Colour: Black Material: PC Size: 92 x 65 x 20mm Package Contents: 1 x adapter 1 x RCA lotus line 1 x 3.5mm AUX cable 1 x USB power supply line 1 x remote control 1 x English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.