This product is a wireless audio transmitter, using 2.4G technology for high-definition sound quality without delay transmission. The transmitter can transmit the 2.0 analog stereo audio signal of RCA and 3.5mm audio interface to the receiver at a distance of 50 meters for listening. It features automatic connection when power on, support for RCA and 3.5mm port input and output, and two-way volume control. The receiver can drive headphones and has a wide range of power interface with Type-c power supply.