BLUETOOTH WIRELESS STREAMING IOS, Android smart phone to this audio mixer. Very easy to wirelessly stream all music tunes to the mixing board from . 4 CHANNELS: The mixer is great for multiple devices connectivity because it has 4 channels, compatible to most audio files.There are 2 XLR/ LINE jack combo microphone input,1 pair RCA stereo inputs. Plus 1 pair RCA stereo output and 1 pair 1/4inch Main output plus headphone jack USB AUDIO INTERFCE: Built-in audio interface can connect directly to your PC and record/edit/monitor high quality audio with /Logic Pro X/GarageBand/Audacity and more software. It provides very convenient connectivity to your audio processor CLEAN SOUND QUALITY: Portable size for small venues and for travel. It produces solid, clear, and clean sound with minimum hiss noise.The DELAY and REPEAT effects adds personality to your mixer from MAIN. It can be adapter or USB powered. Sturdy built quality for long-term and heavy use PREMIUM RECORDING MIXER: It equipped with everything you need to do audio recording,home recording, video, live streaming, and podcasting. Features: Features: (4 channel) XLR ,1/4 combo input 3 band EQ for each input channel. +48V Phantom Power Bluetooth Fuction USB Volume Control Microphone Volume Control Auxiliary Input 2TK Function color:Black Material:ABS Package Contents: 1 x audio mixer 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.