Sell pensgiftnote book卐Tri band 2G 3G 4G Cell Phone Signal Booster Mobile Repeater Amplifier best price

Frequency Range Uplink: 890~915/1920~1980/2500~2570MHz Frequency Range Downlink:935~960/2110~2170/2620~2690MHz Gain: 70dB Output Power: 23dBm Power Adapter: EU/US/AU/UK Plug Power supply: AC:110～220V; DC:12V 2A Connector Type: N Female Coverage: Up to 500 sqm without barrier Improve Network Type: 2G Voice and 3G 4G Internet Date Before buying please note!!! 1.Make sure the frequency band of your carrier is suitable for this item.Otherwise the device can't work for you. If you do not so clear the frequency of your phone, you could click this linkfor check the frequency band of your carriers.Below are some countries' frequency bands for your reference. 2.Make sure you can receive good signal that you want to amplify on your house outside,which must becan gettingon your mobile phone. Please note that the signal booster can only boost the mobile phone network signal, but does not help to generate any signal. For example, if your outside signal has 0 bar, it can not work or bring you any signal..Below is the method to check the mobile phone signal strength. 3. The distance between the outdoor antenna and the host must be at least 5-7 meters 4. Be careful not to lean the host computer against the balcony door, because it may cause self-excitation, which will cause the host display to burn out after a few months