Check the listing for details. Nalbantov Expression Pro - Optical Pedal with Two individual expression channels. Color: Black, Condition: New. Listed at 339.00 USD. Nalbantov Expression Pro The World's first optical Expression Pedal that can work with two keyboards/effects at the same time The optical technology of the pedal eliminates the cons of the potentiometers used in Expression pedals. NALBANTOV Expression Pro is devoid of the wear and tear of traditional potentiometers, which causes crackling, popping and interruption.NALBANTOV Expression Pro has a durable and clear design. The pedal is finished in black with a blue LED Nalbantov logo. Expression Pro offers stability and precision in a compact size. It also features rubber grips, smooth control and fine resolution.The Expression Pro power supply is 5V USB and can be powered by a standard USB adapter or by the keyboard/effect if there is a USB connector.Package includes:Nalbantov Expression ProPower cable and accessoriesUser’s manualWarranty – 3 years (1 year guarantee plus 2 years when you register the product online)Features:Two individual expression channelsAn optical system that eliminates the traditional potentiometerTwo polarity switches – one for each channelSpecifications:Power – 5V USB standard A connector (via the provided cable)Support – Suitable for most expression pedal portsDimensions – 210mm (8.27″) L x 76mm (2.99″) W x 66mm (2.60″) HWeight of Expression Pro: 1.07 Kg (2.36 lbs)Add SectionEdit SectionDelete SectionEdit ColumnEdit Image