PopSLATE’s e-ink display case puts a secondary display screen on the back of the iPhone 6. The secondary display allows users to access certain information without unlocking the phone.

“We recognized the existing mobile experience—constantly unlocking your phone to launch an app to access simple information, and burn up precious time and battery life—could be a lot more efficient,” said Yashar Behzadi, PopSLATE founder and CEO. “We knew there had to be a better way to access data and images and have them accessible anytime—that your apps should work for you, rather than the other way around.”

The case has a four-inch e-ink shatterproof and crackproof screen built into it. The screen can display pictures, screenshots, to-do lists, calendars and more. All of this information is transmitted from your phone to the case via Bluetooth.

The case will allow users to save battery life on their phone. The case has a battery life of its own of seven days.

The PopSLATE e-Ink display case is the first product from the brand and was funded by an Indigogo campaign. It costs $129.