Description: new and Feature: This mixer is a multi-purpose 4-channel mixer with a sound card, which can meet the needs of users home music production, net-work live broadcast, K song cover and so on. The mixer is equipped with input gain and high and low adjustment, built-in 48V phantom power supply for direct power supply of condenser microphones, high-definition headset output port, MP3 player, Bluetooth-compatible receiver, with connected PC sound card. Ultra-thin design, support USB/U disk (MP3) playback, built-in Bluetooth-compatible receive playback (controllable). Built-in net-work host sound card. USB/MP3 Jack, USB Jack can be connected to U disk or MP3 and other portable audio equipment. Built in reverb effect, stage equalization regulate, by adjusting knob to adjust the reverb depth and delay effect. It is small and light, and can be directly connected to the USB port of the PC for power supply. No additional power supply is required. Specifications: Item Type: Mixer Audio Console Material: ABS Size: 18x15cm/7.08x5.9in Color: Black Plug Type: US Plug, EU Plug(Optional) Quantity: 1 PC Note: Transition: 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 Set x Mixer Audio Console (other accessories demo in the picture are not included!)