For Sale - Bluetooth Midi Footswitch Controller (Positive Grid BT4) | TalkBass.com
Positive Grid BT4 Bluetooth MIDI Pedal | MUSIC STORE professional
FAQ - BT Pedal – Help Center
Amazon.com: Positive Grid Spark Control Wireless Guitar Footswitch Pedal/Controller for Spark Guitar Amplifier and Mobile App with Backing Tracks : Musical Instruments
Spark Controller | AIRSTEP Spk Edition – XSONIC
Positive Grid BT4 Bluetooth MIDI Pedalboard | Sweetwater
Positive Grid Launches BT-2/BT-4 Bluetooth MIDI Foot Controllers
Positive Grid announces wireless foot controller for Spark | Guitar World