Sony Interactive Entertainment has begun distributing a beta firmware update for the PlayStation 5 that introduces two headline features: an experimental “Power Saver” setting designed to lower the console’s electricity use by throttling performance in supported games, and the ability to register a DualSense wireless controller with as many as four devices at once. Power Saver is disabled in the current test build but will be offered as an optional mode when the software releases publicly. Sony says the feature will not work with virtual-reality titles and that specifics on compatible games and expected frame-rate reductions will be disclosed closer to launch. The initiative forms part of the company’s “Road to Zero” plan to reach net-zero greenhouse-gas emissions by 2040. The same update lets users switch a DualSense between a PS5, PC, Mac or smartphone simply by pressing the PS button and an assigned action button, eliminating the need to re-pair the controller each time. Observers note that both the lower-power profile and multi-device support would be well-suited to a rumoured PlayStation handheld that could play PS5 games natively. Sony’s move comes as Microsoft expands cross-device continuity of its own, adding automatic progress syncing across Xbox consoles, PCs and Windows handhelds for cloud-playable titles—underscoring a broader push by the console makers to make gaming libraries more portable while curbing energy consumption.