You can cascade several Mesh Repeaters in the Mesh. This type of cascading makes it possible for you to extend your home network in a specific direction beyond the Wi-Fi range of a Mesh Repeater.
This means that not only can you connect your FRITZ!Repeater with the FRITZ!Box (Mesh Master), you can also connect it with an already existing Mesh Repeater. It does not matter whether the Mesh Repeater is another FRITZ!Repeater, a FRITZ!Box, or a FRITZ!Powerline adapter.
> https://en.avm.de/faqs/connecting-the-fritzrepeater-with-the-mesh-repeater/
When several FRITZ! products are being used in the home network, smartphones, tablets and other wireless devices are automatically steered to the wireless access point with the best Wi-Fi reception and also to the most suitable frequency band. This process is known as Mesh Wi-Fi steering.
> https://en.avm.de/guide/avm-explains-mesh-wi-fi-steering/
Details Smart control The FRITZ!DECT 400 makes using and operating the smart plugs in your home easier than ever before. For example, you can turn off the light in the living room from your couch. You don't even have to get up! Individual and group switching are both possible. Integrated in the home network The smart switch is integrated into your home network via the Digital Enhanced Cordless...
> https://en.avm.de/products/smart-home/fritzdect-400/details/