This Tascam RC-3F 3-Pedal Footswitch is compatible with various Tascam players including DP-03, GB-10, and LR-10. It includes two small side pedals and a large central pedal for handsfree operations and easy control. The footswitch has a 2.5 mm plug which connects to your recorder's remote jack for adding more controls. It comes with two AA manganese batteries for smooth functioning.