The cameras connect to the base station via 2.4ghz?
Yes, that is what I understood from the Wyze AMA video yesterday.
Wyze explained why they chose the 2.4 GHz in the AMA video yesterday. One reason was the cost. They wanted to make sure the cam would be affordable as possible for everyone.
Range and Coverage
The 2.4 GHz band provides coverage at a longer range but transmits data at slower speeds. The range is lower in the 5 GHz band because higher frequencies cannot penetrate solid objects, such as walls and floors.