This GSM/LTE signal booster has been created using top-notch cutting-edge technology to ensure the 5 bar signal strength across the covered area, even if the signal outside is as low as 1 bar. 2G and 4G booster is ideally what you need to enhance your internet coverage. It is designed both for voice and data network and operates within 800, 900, and 1800 MHz network frequencies. It has coverage of up to 1-2 rooms and should, therefore, suffice for small apartments and offices. If well maintained and run correctly, it can serve you for ages. All you have to do is stick with the procedures provided in the manual. Moreover, it can be used for all the major UK mobile operators like Tesco Mobile, O2, EE, BT, Virgin, Orange, TalkTalk, GiffGaff, T-Mobile, Three and Vodafone.