This Wharfedale Pro EZVERB effects processor is programmable, but it doesn't come with a power supply. So you'll need to get one separately.

To use this Wharfedale Pro EZVERB Programmable Effects Processor, first, make sure you have a suitable power supply as it's not included. Connect the power supply and then you can start programming the effects according to your needs. When using, avoid exposing it to extreme temperatures or humidity. For maintenance, keep it clean by using a soft, dry cloth to wipe it regularly. Don't use any harsh chemicals on it. If you encounter any issues, it's best to consult a professional.