Introducing the Ampero II Press, a pedal unlike any other expression pedal available to date! The Ampero II Press does more than just control effect parameters like a traditional external expression pedal. It is equipped with a special foot switch that allows you to change effector settings and functions, allowing for more versatile operation with your feet. It is especially well-suited to the Ampero II Stage from Hotone, and when used in combination, This increases performance to over 100%. The foot switch structure has also been optimized to provide excellent tactile switching sensations. This product is designed with passive circuitry, making it highly reliable and easy to use, as it does not require a power supply. - Enhanced footswitching feel The Ampero II Press uses a foot switch that emits a unique "click" sound. You can definitely feel the pedal switching even while performing on stage. -High compatibility with major effects The combination of Ampero II Press and Ampero II Stage offers unparalleled compatibility. Ampero II Press can be connected to an effects unit via EXP OUT & FS OUT. Suitable for any effects unit with a dual EXP interface. Perfect for controlling various brands of effects pedals with dual EXP interfaces.SPEC Potentiometer Impedance EXP/Expression): 1/4" (6.35mm) TRS, 10kΩ, linear FOOTSWITCH: 1/4" (6.35mm) TRS, momentary size and weight Size: 81mm (W) x 162mm (D) x 51mm (H) Weight: 455g