The Positive Grid Spark Control X gives you direct access to key functions of your Positive Grid Spark Amp. This six-button footswitch is compatible with both Spark amps and the accompanying app, and it's especially easy to set up. Each button can be assigned individually for example, to switch between presets, turn effects on or off, or control music output. The footswitch also includes two TRS connections for expression pedals. The Spark Control X operates completely wirelessly and features a built-in rechargeable battery that lasts up to 150 hours on a single charge.