Digital Picture Frame Uk

Will I need a step down voltage converter?
I have purchased some digital Picture Frames for christmas gifts to take to the UK. I understand the US runs on 110 and the UK 220V. The adapter says Input 100-240V. So would I need a step down converter or just a UK plug adapter or both? Cheers me dears!
If the input of the adapter says 100-240v, then it’s likely that there is a swtich on the adapter for whichever country you’re in. SImply set the switch to the 240v position while in the U.K.
Digital Photo Frame Software