Feature: Use 2.4G technology for high-definition sound quality without delay transmission External antenna, better transmission effect Automatic connection when power on Support RCA & 3.5mm port Input Introduction: 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 50meters for listening. can solve the problem of tedious operation of repeatedly switching/setting the output audio format of the signal source and the problem of messy cable binding. Therefore, it is widely used in home audio-visual, schools, squares, electronic games and other places Support RCA & 3.5mm port Output Receiver can drive headphones Support 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 Transmit power:14DB :67DB Frequency Range:20HZ---14.5KHZ Output the highest level:1.75Vp-p Colour: Black material: metal Package Contents: 1 x Receiver 1 x Transmitter 2 x USB Charge 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.