Excellent for its category.
In open field, it has a very good range.
In the city, it covers quite a few squares.
For pmr enthusiasts, it is excellent!!!
As for the batteries, if you want, you can put larger ones, the main thing is that you can charge it anywhere as it has USB!!!

Hardcore construction, no need for sanding, polishing, etc.
In terms of range, the LOW setting is only for eye contact use and up to 4 floors, on the 5th floor there is a lot of clatter and communication is not understandable at times. However, in the HIGH setting, it has sufficient range for clear communication in underground areas with reinforced concrete up to the 10th floor, which has been tested, and up to 5K in eye contact.
The batteries of this specific version are NIMH and last satisfactorily, but they are not LIION - it is relatively easy to make your own LiION pack and replace the battery pack inside the package. There is no ready-made LIION pack to buy from a supplier at the moment.

Very durable with good range in open areas where there is no strong electromagnetic noise, I have given them to my children and they have really withstood everything, they are like new, suitable for amateur use