Waveshare 1.54inch NFC-Powered e-Paper No Battery Wireless Powering and Data Transfer (White Case)

These are great! I bought one and loved it so much bought a second and then a third. I added little jump rings so I could add them to my keyring, purse strap, and lanyard. I also have the larger 7 inch passive NFC screen and they all use the same app. Adding pictures is easy and almost instant. I think they could even make great gifts. The images on this device are gray and red and depending on the photo,, adjustments need to be made to get the best image, but it's all done easily in the app. I can see handing these out with preloaded photos as part of a stocking stuffer, gift bag, or memento. I run a nonprofit and might hand these out with our program's image to clients.

Got this for my wife to have on her keychain. She's not the type of person who would ever remember to charge something like this...or replace the battery in something like this. So it's great that it doesn't have one.Even though the display is only black, white & red...it's able to almost trick your eyes into thinking that it's more than that. Not that it looks like a regular color screen, it's just surprising that with those three colors it can display as well as it does, albeit fairly pixelated.The app is a little janky and when you try to update the picture on the device, it sometimes seems like it only gets partway through the process. So you sometimes have to update it more than once to get it fully there.Overall it's a fun little thing. Wife likes it. Every couple weeks I'll grab her keys and put a new picture on it, which she thinks is kind of fun.

This is cute and small. I like to put pictures of my cats on it.

no suggestion on the package, box, unit itself.. its epaper, maybe put it on the display? nothing andoid for sending it an image.

Cool little gadget. I bought two, one is frozen after about 6 months - only changes pictures a few times

The image looks great and it is awesome that it doesn’t use batteries. The only complaint I have is that it comes with no instructions and it took me about 30 minutes on google trying to find out which app it uses. BTW the app is called NFC-ETAG and it is free in the App Store.

This is a great little demo of 3 color e-ink technology. Sometimes it's a little tricky to get it to write and it takes some physical adjustment with my phone, but it still works with my phone case on. If it fails to write half way through, it looks broken, like a cleared etch-a-sketch, but it still functions properly and can be reprogrammed. My only complaint is that I wish it was cheaper so that I could afford to use several as baggage tags.

The media could not be loaded. Super Fun keychain. Very cool. Just finding the right app? No instructionsWorks great