A mobile signal amplifier, also known as a cellular repeater, is an internal relay antenna. The device is similar to cell towers. However, unlike towers, the signal amplifier is small and therefore can be implanted in buildings. The device can be used by several cell phones at the same time, therefore the device is also useful for commercial places and home use.
A mobile signal booster is an amplifier that amplifies the signals of a mobile phone. A mobile phone signal