Features:  Professional recording microphone audio interface with 24-bit/192KHz sampling rate is suitable for connecting microphones, musical instruments or external audio equipment.  With gain control knob to set the volume of microphone or line input signal supplied to the channel. With mix knob to adjust the level balance between the signal input and the application signal.  Supports loopback: the sound input to the mixer and the sound played on the computer are mixed into stereo and sent to the computer.  Supports headphones with stereo phone type plug, with volume adjustment. The out interface in the back can be connected with the mini plug for headphones or earplugs.  DC 5V Type-C USB interface powered, the mixing console can be powered by adapter, power bank, laptop, etc.  Provided with +48V Phantom power switch when using condenser microphones that require Phantom power.  Switch to USB 2.0 interface, so that the mixing console signal can be transmitted between smartphones, computers and other devices that are compatible with iOS and Andriod.  To connect electric guitar directly to the mixer without using the DI box, press the HI-Z switch, and then connect the output of the electric guitar to the channel TRS input.  Made of high quality metal, sturdy and durable. With anti-slip mats in the bottom, stable to use. Mini size, portable and lightweight.    Note:  1. If the electric guitar and bass need to be directly connected to the input port of the mixer, please use the DI box (straight-through box) guitar speaker between the instrument and the mixer.  2. Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding.    Specifications:  Color: Black  Material: Metal  Sampling Rate: 24-bit/192KHz  Power Interface: DC 5V Type-C USB/ USB 2.0  Phantom Power: +48V  Item Size: 175 * 100 * 45mm / 6.89 * 3.94 * 1.77in  Item Weight: 628g / 1.38lbs  Package Size: 26.2 * 14.2 * 7cm / 10.31 * 5.59 * 2.76in  Package Weight: 813g / 1.79lbs    Package List:  1 * Audio Interface  1 * USB Cable (Type-C)  1 * USB 2.0 Cable