MeshForce products currently does not support manually switch the frequency, channel or band.
Unlike traditional wireless router, the mesh technology allows 2.4GHz and 5GHz exists on one same SSID concurrently. And your mobile device negotiate with the mesh point to choose the best performance frenquency.
For example, when you are near to a mesh point, the channel stays on 5Ghz and its best band. When your receving is not so good, it will switch to 2.4GHz automatically to guarantee you can still get wireless coverage at a lower speed.
For channels it's the same, the mesh technology will select most uncrowded channel to get the best performance.
If you have safety concern regarding 5GHz WiFi, don't worry it is completely safe to use. For details about safety, click here.