B5 Lite TX Power low

Good evening people, I’m from Argentina, buy a pack of PTPB5 Lite from an official dealer. I see that it can not handle TX Power DB and by default it is 10 DB.
There is some resticcion by country with the powers of the radios.
I have to do a link of 5 KM and those power levels are too low, very little customization. Accustomed to the MKT world that has other adjustments.
The TX power DB power can be adjusted manually.
Many thanks is my first post in the community.