The Witricity Power Calculator is used to find the power consumption of various electrical devices like Laptop, Computer, Cell Phone, Ipod charger and many many other electrical products used at home. The software allows you to select the device you want to check the power comsumption. You can enter the the total time of usage and the software provide you diffrent reports like hourly charge, monthly charge, monthly consumption, and total usage charge of the device on hourly basis. The key features Easy to Use Wizard based system Huge inventroy to select from Gives you reports which can be used for various calculations Charts and Graphs. It free to use.