That’s pretty close to the shimano system. Most components are connected via a power cables to a central battery. The only full wireless component are the shift

That’s pretty close to the shimano system. Most components are connected via a power cables to a central battery. The only full wireless component are the shifters on handlebars. Sram is fully wireless, and has batteries on each component. Both systems have their set of pros: less batteries and central charging vs less installation effort due to no cables.