About this item Product Performance:SONRU Bluetooth receiver is used to convert non-Bluetooth speakers, home stereo system, car radio speakers, amplifier into a Bluetooth system. So that you can pair these old audio devices with your phone or pad and then listen to your favorite music . NOTE: This product is ONLY a receiver, NOT a transmitter. Double AUX Output Ports:SONRU Newest Bluetooth 5.3 receiver has 2 AUX output ports, as well as 2 AUX 3.5mm cables plus 1 RCA cable in the package. You can connect the receiver with two different devices at the same time, as like home stereos, headphones, speakers, non-Bluetooth car audio systems. Bluetooth Version 5.3 and Noise Cancellation:With a enhanced signal receiving circuit, this Bluetooth aux adapter can be connected pretty fast in long distance, and provide stable and continuous audio sound. Built-in chip has AEC echo cancellation and ANC noise cancellation circuits, making the sound quality much purer and true.