Griffin StompBox Pedal Footswitch Controller For iPad/ iPhone/ iPod touch - Footswitch controller for iPad, iPhone, & iPod touch by Griffin Technology Footswitch controller for iPad, iPhone, & iPod touch Studio-quality 4-channel effects pedalboard for use with guitar and other musical instruments 1/4" jack accepts volume, wah-wah, or other expression pedals Heavy-duty built-in 1-meter dock cable links StompBox to iPad or other iOS device