A generic keyboard sustain pedal is a simple but essential accessory for digital musicians. It replicates the sustain function of an acoustic piano, allowing notes to ring out longer. Built for broad compatibility, it typically features a 1/4-inch jack and often includes a polarity switch to work with various keyboard brands. Constructed from durable plastic or metal, it also includes a non-slip base for stability during performances. Its core purpose is to provide reliable, basic sustain functionality.