GSM Cellular Signal Booster Cellular Amplifier Signal Booster GSM 2G 3G 4G 900 1800 2100 Tri Band Repeater 4G LTE Network Antenna Amplifier 360° Coverage Multi Band Signal Amplifier for Mobile Phones This mobile phone signal booster is designed for the 2G / 3G / 4G mobile band and offers a much faster high-speed Internet. Perfect for people who need fast uploads and downloads. Supports voice and data for mobile phones, including iOS, Android systems, etc., better voice quality for mobile phones, faster data upload and download, fewer calls in absence, so you can surf the Internet and videos without buffering. We have expanded the booster repeater for mobile phones with a high-tech screen that meets the requirements of the market. With the LCD screen amplifier, you can better check the received signal strength. It displays the signal strength and operating status of the booster as well as other required notifications. . Good performance, low operating temperature, extremely low noise reception, high gain. The mobile phone signal amplifier can cover up to 500 °C outdoors without obstacles. For multiple devices and users: release your bad mobile phone network signal and enjoy your beautiful time. It can receive the signal from the signal tower and then amplify your mobile signal. The cell phone signal booster repeater is used for village, garage, basement, home, office, bedroom and so on.