I have just started getting my Internet from Three 4G in time for when 5G becomes available later this year discovered I needed external antenna to pull in a stronger signal. A quick search of internet for a 4g/5g antenna threw up a B4BE version which was priced between around £40 to £60 for same item Co-Star seemed a reasonable choice for price free delivery and speed of delivery and were only a day late because of the covid-19 restrictions. I would recommend them for all these reasons.