ATNJ high quality 900/1800/2100 cell phone signal repeater booster 2g 3g 4g

 ATNJ Smart mobile signal booster are main used to improve the sginal in the weaker signal situtation, meanwhile, it can also up speed the networks of 2G/3G/4G.

It is a perfect solution for the place where the mobile signal weak and can not make the calling, it is designed for the end consumer.

1,Intelligent to guide the installation with LCD
2,Real time display the signal strength.
3,Automatic dormancy when no user make the calling
4,Automatic remind the installation mistake and provide the corresponding solution with LCD
5,Automatic adjust the system gain to avoid the repeater self-excitation
6,initiative reminding when device damaged