Features 1、Multi Device Compatibility: The 4 channel mixing console has BT wireless streaming function, which can be served as input to mix signals with other input channels, suitable for IOS, for Android, tablets, and MP3 players. 2、Input Interface: This mixing console is equipped with gold plated XLR and balanced line input interfaces, with insertion points. Balanced XLR input, can connect to standard male connectors, with +48V for phantom power supply. 3、LED Light and Knob: This USB mixer sound interface features LED indicator light and rotating adjustment knob, with input selection, main volume control, independent channel balance, and high, up, and low frequency adjustment. 4、Convenient and Practical: The ultra thin chassis design and sealed rotating control device are dustproof and sturdy. Provide comprehensive dynamic control, suitable for stage performances and studio level sound playback. 5、Power Supply Methods: With the included USB power cord, you can connect the mixing console to power devices such as computers, mobile power sources, and plugs, with strong compatibility and simple pairing. Specification Item Type: 4 Channel Mixer Material: ABS, Aluminum Alloy Microphone Input: 10Hz-200kHz Frequency Response: +14dB to +60dB Gain Range: 120dB E.I.N. Signal to Noise Ratio: Electronic Balanced Stereo Channel Frequency Response: 10Hz to 70kHz Gain Range: Line: -8 to +15dB, Microphone: +13 to +60dB Signal to Noise Ratio: Line: 96dB, Microphone: 104dB E.I.N. Input Channels: MIC x2, REC x2, PC, Line x3, USB, 3.5MM For Phantom Power: Supports Large Diaphragm Condenser Microphone Power Interface: Type C Package List 1 x Mixing Console 1 x Power Cord 1 x User Manual