InkPoster is a digital art poster built on colour ePaper. The screen is reflective rather than backlit, so artwork appears with a matte, paper-like surface and no glare. Each frame is battery powered and cordless, running up to a year on a single charge depending on how often the image changes. The InkPoster App manages what's on the frame wirelessly, and opens a curated library of thousands of artworks.

Unlike photo frames and art TVs (which use backlit LCD/OLED/other panels), InkPoster uses an e-paper screen. An e-paper screen reflects the light already in the room, the way a printed page does. It makes no light of its own — and that one fact accounts for everything else:

• It draws power only when the image changes. A still picture costs nothing to hold.

• With no backlight, there's no blue light and no heat.

• There's no glare, and the surface reads as printed art rather than as a screen.

• It's cordless, wireless and completely silent.

You can use InkPoster in homes, galleries, hotels, offices, restaurants and retail spaces. With nothing running to a power point, it goes where visible cabling would be a problem. And because the panel has no backlight, it emits no blue light and no heat, which makes it easy to live with in a bedroom or a child's room.

A single charge lasts up to a year. How long exactly depends on how often you change what's on it - the battery only moves when the picture does.

We offer flexible pricing based on No, and it doesn't need one. The ePaper panel is reflective: it shows artwork using the light already in the room, the way printed art does. With nothing lit from behind, there's no blue light, no heat and no sound.

From two places. The InkPoster App - free on the App Store and Google Play - holds thousands of curated artworks, and you can upload your own photographs alongside them.

The app is how you use the frame. It's where you:

• connect it to Wi-Fi and pair it, the first time you set it up

• upload your own photographs and browse the curated library

• change what's showing, set the orientation, and manage more than one frame

• install firmware updates

It's free on the App Store and Google Play, and it's the first thing to set up when the frame arrives.

Yes. Upload them from your phone through the InkPoster App and they display just like any artwork from the library.

No - the app does it for you. Crop and position the image to suit the frame's proportions, whichever way it's hanging, and adjust it yourself if you'd rather control exactly what's in shot.

Because the image is made of ink, not light.

An LCD or OLED screen changes a pixel instantly by changing what it emits. ePaper has to physically move charged pigment particles into place - millions of them - to build the picture. PocketBook calls this ink-printing, and it takes roughly 10 to 20 seconds.

You'll see some flickering while it happens. That's the particles settling. It's also the reason the finished image can then sit on the panel using no power at all.

Inside the panel are millions of tiny cells holding coloured pigment. Apply an electric charge and the pigments move into position, arranging themselves into the picture - much the way ink settles onto paper, which is where the name comes from.

It takes about 10 to 20 seconds, and you'll see some flickering while it happens.

The difference is what's behind the glass, not the size of it.

Both models use E Ink Spectra 6 colour ePaper. The Tela adds a Sharp IGZO backplane, which drives a higher-resolution panel - 3060 × 2160, against 2560 × 1440 on the Affresco - and changes images faster. Those components cost more to make.

Put simply: the Affresco is the larger frame, the Tela is the sharper one.

No - the battery isn't user-replaceable. If it ever needs servicing or replacing, please get in contact with us.

Yes, both. The panel reproduces around 60,000 colours, and displays black-and-white work equally well.

Yes - portrait or landscape, whichever way you mount it.

Yes, from anywhere. Switch on Wi-Fi on the frame, set a sync interval in the app, then send new artwork whenever you like - from the next room or from another country. The frame picks it up at its next check-in.

Your InkPoster arrives in shipping mode, with the screen inactive. Plug it in with the supplied USB-C cable and it wakes up, ready to set up.

A factory reset clears the frame's settings and unpairs it from your account, so you'll need to add it again afterwards.

Two ways to do it:

• On the frame - press the power button seven times. The default screensaver image appears once it's done.

• In the app - use the menu, with the frame within Bluetooth range.

Either way, add the frame back to your account in the app when it's finished.

Power-off mode turns the frame off completely, while leaving the current image on the screen. Nothing is drawing power, and nothing is connected to the app.

To switch it off:

• Hold the power button for five seconds

• The LED blinks three times, then goes out

• The picture stays exactly where it is

Press the power button once to bring it back. While it's off it can't receive new artwork, so switch it on when you want to change what's showing.

Ghosting is a faint trace of a previous image left behind after the screen updates. It happens on all E Ink displays, not just this one.

To avoid it, change what's showing every couple of months rather than leaving a single image up indefinitely.

If you do see it, change the image seven to ten times in a row and it clears.

Use Forget InkPoster when you're passing a frame on - gifting it, selling it, or handing it to someone else. It releases the frame from your account so the new owner can add it to theirs. Without it, they won't be able to pair it.

The frame is black with a white mat. Other finishes aren't available at the moment.

Yes. Add as many frames as you like to one account and manage them from the same app - a pair either side of a fireplace, a wall of several, or frames in different rooms, each showing something different.

They follow classic gallery framing. The width of the mat and its proportion to the image are the ones picture framers have long used, because a work needs a margin around it to read as a work rather than as a panel.

PocketBook's product design team - whose work has been recognised with Red Dot awards - applied the same proportions to the digital frame.

There's no maximum - upload whatever you have and the app resizes it to suit your model. Very large files simply take a little longer to process.

Worth knowing the other way round: aim for at least the panel's own resolution, or the image will look soft. On the 13.3" that's 1600 × 1200.