Rolling Square TAU 2 key ring

Tau 2.0 is the world's smallest 3-in-1 power bank. Equipped with USB-C, Lightning, and MicroUSB cables, it is compatible with practically any portable device. Thanks to the proprietary dock, charging is as easy and seamless as hanging up your keys when you get home.

Always Charged
The magnetic charging station of the Tau can be easily attached to your countertop or wall, allowing you to recharge your battery effortlessly. Simply hang your keys on the charging station when you come home, and the Tau will be ready for you the next time you head out! With the built-in cables, you are always prepared to charge any device.

Always with You
While traditional power banks are too bulky to carry in your pocket and are often left behind, the Tau is so small and lightweight (only 40 g) that you will almost forget you have it with you.

Always Ready
The Tau is compatible with any smartphone and portable device thanks to its two integrated cables:

• Dual: Lightning for Apple devices (iPhone, iPad, iPad Air, AirPods) + MicroUSB devices in one
• USB-C: compatible with the latest Android and Google phones and next-generation portable devices

Effortless Setup
Place the repositionable nano suction layer where you want it, plug in the cable, and the Tau is ready to go. And if you are a DIY enthusiast and are 100% sure you won’t be moving your dock, you can also use the screws included in the packaging.

Compatibility

• Lightning (iPhone, iPad, iPod, AirPods)
• USB-C devices
• MicroUSB devices.