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  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
  • Klynein™ phone case with a screen you can change anytime
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Battery-free E-Ink · One-tap image swap

Klynein™ phone case with a screen you can change anytime

$73.99 USD $89.00 USD Save $15.01 USD

A battery-free E-Ink display sits on the back of your MagSafe case. Tap once in the Klynein app and the image changes — no charging, ever.

✓ Change the image in one tap from the Klynein app
✓ Battery-free E-Ink holds your design with zero power
✓ Full MagSafe + wireless charging, drop-tested armor
✓ Cast a photo straight to a friend’s Klynein™ case
Guaranteed safe & secure checkout
Emily R.
Emily R.
✓ Verified Buyer
★★★★★

"I uploaded a photo of my daughter and it turned out beautifully. The display looks incredibly clear, the case feels premium, and I've already had multiple people ask where I got it. Absolutely love it."

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One-tap swapNo batteries, no cables
MagSafe readyWireless charging works
20-ft drop testedPC + TPU armor
90-day returnsRisk-free trial
Meet Klynein™

Change your case in one tap. Never charge it.

Klynein™ is a customizable MagSafe case with a circular battery-free E-Ink display on the back. Swap the image straight from your phone — a selfie, a pet, a quote, anything — and it stays on without using a drop of power. You're not the same every day, so your case shouldn't be either.

Why people switch

Built to change with you

Everything you'd expect from a premium case — plus a display that's yours to redesign anytime.

One-tap image swap

Update the display from the Klynein app in seconds. No batteries, no cables — just tap and go.

Truly battery-free

E-Ink holds your image with zero power draw. Set it once and it stays — even with your phone off.

Full MagSafe support

Snaps to MagSafe accessories and wireless chargers with no compromise on alignment or speed.

Drop-tested armor

Reinforced corners and a PC + TPU frame survive everyday chaos. Tested through a 20-ft drop.

Crisp, clear display

A high-resolution 4-color E-Ink panel renders your photos sharp — no muddy, low-effort prints.

Send to a friend

Link Klynein™ cases and cast a photo straight to someone's case. Surprises, just because.

Three steps

From bored to brand-new in 10 seconds

Choose your image in the Klynein app 1

Pick your image

Open the Klynein app and choose any photo, design, or template from your library or the community.

Tap your phone to send the image to the case 2

Tap to send

One tap wirelessly pushes the image to the case. No charging, no cables, no waiting.

Klynein case showing a custom photo all day 3

Wear it all day

The image stays put with zero battery use — until the next time your mood changes.

The difference

Klynein™ vs. an ordinary case

Why settle for one design when you already own the case?

 Klynein™Ordinary case
Change the design anytime✓✕
Battery-free display✓✕
Cast photos to a friend's case✓✕
MagSafe + wireless charging✓Sometimes
Drop-tested protection✓Varies
Cases you'll need this yearJust 13–5
Why Klynein™

One case. Infinite versions of you.

You shouldn't need a new case every time your vibe changes. Klynein™ turns the back of your phone into a blank canvas you can redraw whenever you want — and a fun way to stay connected with the people you care about.

  • ✓ Unlimited designs from one case you already own
  • ✓ No power, no waste — set it and forget it
  • ✓ Protection and personality in the same slim shell
  • ✓ Backed by Klynein's 90-day return promise
Three Klynein cases each showing a different design
Friends showing off their custom Klynein cases

Try Klynein™ risk-free for 90 days

Snap it on, switch a few designs, live with it. If it's not your favorite case, send it back within 90 days for a full refund — no awkward questions.

Good to know

Frequently asked questions

How well does Klynein™ protect my phone?+
It pairs high-strength PC with a durable TPU frame for serious everyday protection and has passed a 20-foot drop test. The design balances protection, function, and fun in one slim shell.
Does the case turn yellow over time?+
No. The material is optimized to resist yellowing, so it holds its clarity far better than standard transparent TPU cases.
Does it support wireless charging?+
Yes — Klynein™ is fully MagSafe-compatible and works with wireless charging. Its layered structure even helps with heat dissipation while charging.
Will the case make my phone overheat?+
No. An FR4 plate conducts heat away from your phone more effectively than plain PC or silicone, helping it stay cool under load.
What's the display made of and how sharp is it?+
It's a 4-color E-Ink panel built from a high-resolution display, TPU, PC, and FR4 — delivering clean, crisp images that hold without power.
How do I install and remove it?+
To install, start at the camera corner and gently press the phone in until it snaps securely. To remove, peel from the camera corner and slide the phone out gently.
Will it affect NFC or contactless payments?+
Not at all. NFC features like contactless payments and transit cards work normally through the case.
How fast do orders ship?+
Orders ship from our Kentucky warehouse, typically within 1 business day. You'll get tracking by email the moment it's on the way.

Stop buying new cases. Start switching.

One Klynein™, endless looks — battery-free, MagSafe-ready, backed by a 90-day guarantee.

Customize my case →