Full-Balance Audio Switcher/Volume Controller: High-Fidelity Transmission/Two In Two Out/Free Signal Switching. It serves as both an audio signal switcher and a volume adjustment controller, eliminating the hassle of multiple signal input/output cable plugging and addressing the issue of lacking volume control devices. Free switching, lossless transmission, no power required.
Four Switching Modes: XLR Input to XLR Output; XLR Input to RCA Output; RCA Input to XLR Output; RCA Input to RCA Output.
Wide Application:Compatible with MP3 players, mobile phones, tablets, CD/DVD players, laptop computers, MACs, desktop computers, TVs, and set-top boxes as signal sources. Output can connect to amplifiers, passive speakers, or active speakers, so that you can easily set up your home audio system.