When the Slate 2 is in Screenless mode, the upper LED shines green. When you see the green LED, your Slate is ready for use without your iPad, Mac, or PC.
To activate the Screenless mode: when the Slate is turned on, just make a brief push on the power button until a green color is shining on the side led
The Slate 2 has a battery life of approximately 8 hours when fully charged.
The Slate 2's internal memory size is 8 Go : it allows you to digitize and store up to more than 800 000 pages of drawings.