The GKP2 lead allows you to link more than one Roland guitar synth product with your guitar. So for instance, you could buy the GKP-2 lead and link a GR55 alongside a GP-10, GR-S or GR-D. These all work with the Roland V-Guitars or guitars equipped with the GK-3 pickup.
Any electrical items in your order may have been designed to work with a 240V circuit, using a United Kingdom G type plug connection. An adapter or transformer may be required for these items to work properly and safely in your country. Some items work with a range of voltages, or have a switchable voltage control built in. Please refer to the specific product details for further information.