Function: Utilizes 2.4G technology for high-definition, lag-free audio quality. Features an external antenna for improved transmission performance. Automatically connects upon power-on. Supports both RCA and 3.5mm port inputs. Introduction: This product is a wireless audio transmitter employing 2.4G technology for high-definition, lag-free audio. The transmitter can send a 2.0 analog stereo audio signal from RCA and 3.5mm audio interfaces to the receiver up to 50 meters away for listening. It effectively solves the issue of cumbersome operation from repeatedly switching/setting audio output formats and the problem of messy cable management. Therefore, it is widely used in home audio-visual systems, schools, public squares, electronic gaming, and other venues. Supports RCA & 3.5mm port output. The receiver can power headphones. Supports two-way volume control. Type-C power supply. Specification: Maximum Transmission Distance: 50M RX Power Consumption: 5V/45mA TX Power Consumption: 5V/150mA RF Frequency: 2400Mhz Transmission Power: 14DB : 67DB Frequency Range: 20HZ---14.5KHZ Output Highest Level: 1.75Vp-p Color: Black Material: Metal Package Contents: 1 x Receiver 1 x Transmitter 2 x USB Charging Cable Note: Light reflections and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.