Material: MetalIs Batteries Included: NoHigh-concerned chemical: NoneM-VAVE Chocolate Plus Wireless Midi Controller Keyboard 4 Buttons Foot Switch Supports Host Interface Control Function PedalProduct Feature Introduction:Portable midi pedal, small and exquisite;The display screen can directly feedback the commands you issued , intuitive and clear.;WINDOWS, MAC, IOS, ANDROID and other platforms are all compatible.The built-in host interface allows for direct control of the effector ;Advanced customization mode with switchable bank;Customization of keyboard combination keysColor: As ShownMaterial: MetalPackage Contents:1*pcs M-VAVE Chocolate Plus Wireless Midi Controller Keyboard+1*pcs instruction manual + 1*pcs UBS cableOnly 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.