Tascam GB-10 3-Pedal Footswitch for GB-10 / LR-10 Trainers
The RC-3F is a 3-pedal footswitch for several Tascam products. The mini-jack plugs into the "remote" connector of these products allowing hands-free operation of features like play/pause, looping, or punch. For more information, see the user manual of the product in question.