ITEMS INCLUDED: Side Car Controller DC power Y splitter to share with Boomerang III power supply 5-pin MIDI cable QR Code to downloadable user guide (No physical copy in box) With the Side Car Controller you get 3 dedicated footswitches which control “Stack”, “Erase” and “Play Stop All”. You also get 4 additional bonus features for a total of 8 between the 2 pedals. With these additional Bonus options, you can unlock the true potential of the Rang III including the easy use of “Loop 4” without needing to give up any bonus features. The Side Car Controller connects to the Boomerang III using a standard 5-pin MIDI cable (included with purchase). One end of the MIDI cable connects to the “Pedal Link Out” port on the Side Car and the other end connects to the “Pedal Link IN” port on your Rang III. No additional setup is needed. You can also daisy chain the Side Car to the RangIII’s power supply with the DC power Y splitter included with your purchase. If you want to use the Side Car with your Rang III but you already use the Rang IIIs “Pedal Link In” port for syncing with MIDI clock the Side Car will retransmit the MIDI clock messages to the Rang III. Simply connect the MIDI cable from the MIDI clock device to the “Pedal Link IN” port on the Side Car which puts the Side Car between the MIDI clock device and the Rang III in the signal chain. The Side Car MIDI commands and MIDi tempo will both transmit through the Side Car’s “Pedal Link Out” port. The included Y power cable splitter for daisy chaining the Side Car to the Rang III’s power supply is only compatible with Rang III models that have a serial number beginning with “91”. If you own a Rang III with a serial number beginning with either "L3" or "56" the Y splitter will not fit on those pedals. Please check your serial number before purchasing this product. Please contact Boomerang Customer Support for any questions you might have regarding this.