[Stereo and Microphone Line Inputs] This 4 channel mixer comes with two XLR line input connectors for microphone connections, supporting both balanced and unbalanced signal inputs, and offers 3-band equalization adjustments for precise sound control. [USB/Flash/MP3 Card Reader Compatibility] This professional audio mixer includes a USB sound card and audio interface, facilitating recording and connection to or PC, and offers broad compatibility with digital audio files. It can also record audio signals to USB devices for straightforward post-processing and playback. [Wireless Bluetooth 5.0 Connection] The 4 channel sound mixer can wirelessly stream music from pads, cell phones, tablets, and other Bluetooth devices. This feature allows you to add background music or accompaniment at any time, enhancing the atmosphere of your presentation or live stream. Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Voltage:AC100-240V Color:As Shown Material:Aluminum Alloy Package Contents: 1 * Mixer 1 * 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.