Boss FV-30L - volume pedal with low impedance and stereo In-/Output for effect pedals and keyboards, aluminum housing, dimensions in mm (WxDxH): 80 x 192 x 58, weight: 840 g

"Boss EV-30 Dual Expression Pedal - works with 6,3 mm TRS expression inputs on stompbox pedals, multi-effects, keyboards, MIDI controllers, and more, polarity switch provides compatibility with most devices that support..."

Педаль Kurzweil CC-1

Универсальная Expression педаль с переключением активности(нажим-отжим: изменение параметра 0-127 и наоброт 127-0)