Dual Analog VU Meter DB Panel MIC/LINE Sound Level Indicator Audio Switcher Box. With dual-channel RCA/XLR input and output, the input is compatible with MP3, phones, computers, CD Players, and other audio devices, the output can be connected to active speakers, amplifiers, mixers, etc. Also equipped with dual-channel microphone input, dynamic decorative audio environment. Support to switch between MIC and LINE two kinds of inputs at will, no need to plug in and out cables repeatedly to avoid wearing the contact point of the sockets, it can protect the interface and increase the service life. Two control knobs to adjust the volume of channel 1 or 2 seperately, each channel is independent and does not interfere with each other, without affecting the output sound quality, convenient to use.Cool black case, 2PCS blue VU meters, and clear indicators look vintage and dynamic, can perfectly match a variety of usage scenarios, very suitable for audiophiles who have more than one amplifier or speaker. Audio input: Channel 1 & Channel 2 RCA / XLR / Microphone. Audio output: Channel 1 & Channel 2 RCA / XLR. Dimensions(WDH): 450305163mm / 17.7212.136.42in. Package dimensions(WDH): 550500250mm / 21.6519.699.84in. Net weight: 5.11kg / 11.27lb. Package weight: 7.0kg / 15.43lb. Now use the upgraded version: AC 90-245V universal voltage. As the large panel is easy to have static electricity in winter, please wipe it with a damp cloth before using it.