Feature: Uses 2.4G technology for high-definition sound quality with no transmission delay External antenna for improved signal performance Automatically connects when powered on Supports RCA and 3.5mm port input Introduction: This product is a wireless audio transmitter that uses 2.4G technology to deliver high-definition sound quality without transmission delay. The transmitter can send 2.0 analog stereo audio signals from RCA and 3.5mm audio interfaces to the receiver up to 50 meters away for convenient listening. It helps eliminate the hassle of repeatedly switching or setting the output audio format of the source device and reduces cable clutter. Therefore, it is widely used in home audio-visual systems, schools, public squares, electronic games, and other applications Supports RCA and 3.5mm port output Receiver can drive 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 SNR: 67dB Frequency Range: 20Hz - 14.5kHz Maximum output level: 1.75Vp-p Color: Black Material: Metal Package Contents: 1 x Receiver 1 x Transmitter 2 x USB Charging Power Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.