Attention!! It requires high-speed memory to have good image quality and no lagging. I have used it with a 128GB U1 and I was very disappointed with the result, but with the 128GB U3V30 (170M/s) that I have now, I am quite satisfied. I believe that with something even faster, you will have very good results.

The battery practically doesn't run out if it is not being used. It lasts for more than 1.5 months and still says battery full.

If you use the video, as soon as it shows you a message of 80% battery, it is good to charge it because at 60% it can no longer record video and it turns off by itself (only the video, not the intercom).

The distance it claims obviously applies if you are a team and one person "transfers" the signal to the other. Two communicate with each other for a maximum of about 100m in an open field.

I am the owner of two T-COM SC and I am generally very satisfied. Although it is not something I still practically need, only once by mistake I managed to connect all three of them together, although I have not investigated it or tried it again.

This particular one would be much better if it had the SC's screen, to give you more information about where you are in the menus, etc. Overall, a very good purchase.