This is the Roland GO:MIXER PRO X! This product is an interface/mixer designed for streaming and music production using just one smartphone! I've been using it for almost six months, but I'm selling it because I'm upgrading my equipment! It works perfectly! I've checked all the knobs, cables, and jacks! Included accessories: 3 types of USB cables, original box Inputs: 11 channels Outputs: 3 channels Connectors: INSTRUMENT (L/MONO, R) jacks: Standard type LINE IN 1 jack: Stereo mini type LINE IN 2 jack: Stereo mini type GUITAR/BASS jack: Standard type (supports high impedance) SMARTPHONE IN/OUT jack: Stereo mini type (stereo, CTIA) MIC jack: Combo type (XLR, TRS standard), balanced (phantom power DC 48V, 6mA) HEADPHONE/HEADSET jack: Stereo mini type (stereo, CTIA) USB port: USB micro-B type I'll consider price negotiations as much as possible! Thank you!