Just plug the Wireless Extension Cord (WEC) base unit into a standard wall outlet, and plug whatever you need into the satellite unit. The WEC uses microwaves in the 7.2GHz range, so it won't interfere with wireless networks, Bluetooth components, etc. Now, all you need to do is adjust the antennae on the two units so they are aimed at each other. Turn everything on and you have the power! The distance the WEC units can broadcast differs from situation to situation (due to interference of such things as walls, power lines, and microwave ovens), but we've beamed power over 300 feet!