Dory has launched the Dory Sign, an E Ink digital display priced at $149 that the company says offers 10 to 15 years of battery life and supports up to 1,000 updates. The sign uses power only when updating its display, and its contents remain visible without electricity.

The device is controlled through a free iOS or Android app that communicates with the sign via Bluetooth and does not require users to share their email or name. The app allows multiple users to make changes to the display and provides separate sections for editing header text, main text, footer text, adding an image, and choosing a background.

The app includes six typefaces and sliders for text size, line height, letter spacing, and text color. It also offers preloaded images such as animals, flowers, and illustrations, along with preloaded backgrounds including brush strokes, marble, and landscapes. The sign can display only one image at a time, and users must press the power button each time the display is changed.

When the battery dies, the sign continues to display the last image shown on the screen. The E Ink display does not use bright lighting. The product has an IP44 rating, indicating its enclosure withstands solid objects of 2.5 mm or larger, rain, and spraying and splashing water.

The device received Calm Tech Certification from the Calm Tech Institute, which is awarded to gadgets that meet criteria for enhancing human life without causing stress or distraction. Dory advertises use cases for the sign including as a name placard for offices or apartments and for displaying QR codes.

If the Dory Sign's app were discontinued, the device would no longer function. Addressing the longevity of the product in an email, Dory founder and CEO Thomas Ramberg said, "The battery could last for 15-20 years before replacement, and the sign should then be workable for additional decades in theory. Yes, in the (sad) case we would not be around in some years, we will [definitely] keep the app and functionality available. It is [a] fairly modest [expense] to keep the software running."