Miscellaneous Electronics
Hotone FS-2 Ampero Switch+
Hotone FS-2 Ampero Switch+, Footswitch Controller, Suitable for Ampero I and II as well as other devices with support for foot switch controllers, Ultra-compact 2-button control, Dimensions (W x D x H): 102 x 63.5 x 49.6 mm, Weight: 190 g, Includes...
https://www.bizrate.co.uk/miscellaneouselectronics/hotone-fs-2-ampero-switch-oid33351421902.html