RCA Lotus audio interface format, stereo after operational amplification brings a more realistic live sound experience, the output can be connected to headphones, active speakers and amplifiers, and each input and output has a volume adjustment function. The shell is made of high-quality metal, frosted industry, sturdy and durable, delicate and durable, fast heat dissipation to ensure normal heat dissipation of internal parts and longer service life. Silicone foot pads are used around the bottom to stabilize the device. 4-input 2-output mixed audio distribution output: Four output devices are connected to 2 speakers or headphones with RCA audio interfaces at the same time, and the operational amplification brings a more realistic live sound experience. 4-way input can be used simultaneously/one can be selected, 2-way output can be used simultaneously/optionally, mixing/distribution/multi-way combined output, optional. Support hot plug and play, eliminating the trouble of installing drivers, no limit on the system, fast processing speed, smooth operation. Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on./EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on. Voltage:AC100-240V Color:Black Material:Metal Package Contents: 1 * Audio Switcher 1 * power adapter 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.