The AC Power Supply with NP-FZ100 Dummy Battery allows you to power your a9, a7 III, or a7R III camera directly from a wall outlet. Featuring an 8' cable length, this power supply provides an ideal solution for continuous power in the studio or at events. It features a US-standard wall plug but supports 100-240V worldwide power input, so you can use it just about anywhere in the world with the right plug adapter, sold separately.