There are many people out there who are not satisfied with their cell phones performance. If you are one of those people who are un satisfied with their cell phone then you can have you cell phone at its best just by installing a small device called cell phone signal booster. These small additions to your cell phones can make the improvement in incoming and outgoing calls of your cell phone. These boosters also increase the range of the cell phone and it is also the reason why they are called cell phone range extenders. After installing these cell phone signal repeaters you are able to get calls at those places where previously you were not able to do so. These boosters also improve the sound quality of the cell phones and make the incoming calls crystal clear. These devices can be used at both homes and offices and they work perfectly at both the places. There are two type of boosters available one are wired ones and the others are wireless boosters. Wired boosters are very tangled because of the wires present in them. On the other hand wireless boosters are less complicated because they don’t have wires in them Wireless boosters don’t require any physical connection with the cell phone that you are using. The working of all the cell phone signal amplifiers is same. First they collect the nearby signals, then they boost them with the help of the amplifier unit and then the redistribute them back in the environment for the cell phones needing the signals.