The perfect recording assistant, wireless 4 channel audio interface controller dj mixer is the perfect way to mix audio from mp3, mic and power amplifier connected devices. Sound card gives you new freedom to record, edit and mix, and any audio you record is studio quality, meaning you don't have to go to the studio to re-record later. USB bidirectional transmission mode, that is, USB output to the computer while also transmitting the computer's sound to the site through the USB interface, compatible with most software, driver-free installation. Flexible LOOPBACK function, perfect for recording and webcasting. Adopt LXR combination microphone input interface. Level visual recording status, easy to adjust flexibly at any time. Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Voltage:AC100-240V Colour:Black Material:Plastic Size:20.5x20x4cm Package Contents: 1 * Sound Card 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.