Artec EDGE BT MC,Blender funtion and 4 Band EQ.With Microphone unit,Piezo Pickup PP607,and Built in TunerColor:BlackFeatures- Volume [min ~ max], - Blender:Microphone- 4 band EQ[-10dB ~ +10dB], - Contour [flat ~ notch]- Notch Band SW. [Hi / Low]- Phase SW.- Low Battery Indicator LED- Chromatic Tuner Including:1pcs of Blender Microphone unit1pcs of chrome soldered jack in new style1pcs of piezo pickup artec PP607(Length:70mm,Width:2.5mm)Note:Battery is not inclued because forwarder do not ship battery.Installing Guide Link:http://www.artecsound.com/acou/data/EDGE-BT.pdf