Each mono channel has +48V Phantom Power Each mono channel has effect switch. Equipped with two wireless microphones, built-in receiver Its rugged construction and flexible design possible to create sound with high performance, good sound quality and stability in applications such as installation, recording and live performances. Its 4 channel full-featured analog bluetooth mixing console. Built-in DSP Sound Effects Processor Built-in MP3 Player Supporting a of Music Formats LED Display for Showing the Playing Status Ultra-Musical 3-Band EQ on All Channels Microphone Line Inputs LED Indicators on All Channels Sealed Control Knobs to Resist Dust and Grime color:Black Material:Metal Package Contents: 1 x Mixer 2 x microphone 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.