📶【Working Frequency Band】 -This 4g booster supports all types of mobile phones in Band 8 (GSM 900MHz), Band 3 (1800MHz), Band 1 (2100MHz), Band 7 (2600MHz) with all operators, such as Movistar , Orange, Vodafone, Yoigo. 📶【What you will get from Lintratek booster】: This cellular signal booster improves voice, text and data signal indoors, helps you avoid missed or missed calls and fast upload and download data. It offers you a stable Internet connection, you can watch streaming videos and make calls without problems. 📶【Widely used for home/office/basement】. - The 4G 3G gsm mobile signal amplifier extends the signal coverage up to 150㎡ and effectively solves the problem of signal dead zone caused by roof/metal occluder... (The amplifier cannot create signal, it needs to (less 2~3 bars of external signal to work properly. The coverage range depends on the outdoor signal strength and the structure of the house.) 📶【Easy to install】The 4g mobile phone home repeater kit includes a sturdy outdoor omnidirectional antenna, an indoor antenna and a signal repeater. Installation steps: 1. Install the outdoor antenna on the roof(A place with at least 3 bars of mobile phone signal). Connect the outdoor and indoor antennas to the amplifier and turn it on. ❤️【Warm reminder】❤️ Reminder again! ! Your mobile phone must work in the same frequency band as the mobile phone repeater, please check first which frequency band your mobile phone repeater uses; The mobile phone signal repeater can only amplify the existing signal, if there is no external signal present, the repeater will not work for you. 📶【Quality and Service Guarantee】-This mobile signal booster offers 100% satisfied and worry-free customer service. In case of problems during installation, please contact us for a satisfactory solution. We will do our best to offer the most sincere service to our customers. (CE certified, 30-day money back guarantee, free replacement for 3 months, free amplifier repair for 1 year.