Combined with an adjustable gain Wilson 801865 amplifier and indoor panel antenna, this was the perfect solution for my VZW LTE signal woes.

Good gain for LTE around 3db

Needless to say I am pretty happy to get 4G and not to have to get a booster - and relieved the higher gain antenna works better than the broadband as some said it would not be.

HSPA+ in the cellular 850MHz band (as well as 2G 1xRTT and GSM in the 850MHz band).It will not work on LTE bands Band 2, 4, 10, 25, and 30

4G would only work on rare occasions and not too

One final tip is to use a small fan to keep your phone cool - between the Sleek 4g putting out heat and running a hotspot you can cook a phone on a warm day, so we use a small 5" USB fan pointed at the phone to keep it from overheating