- It is equipped with two USB ports and a cable system that supports all types of mobile devices – from iPhones to Androids.
- It is the world’s first keyring power bank which features NFC technology to transform into your intelligent business card companion.
Switzerland-based Rolling Square has launched a smallest universal emergency keyring power bank – TAU 2, even smaller than AirPods Pro, on Kickstarter.
It is the world’s first keyring power bank which features NFC technology to transform into your intelligent business card companion.
TAU 2 is equipped with two USB ports and a cable system that supports all types of mobile devices – from iPhones to Androids and can be charged with its magnetic charging dock.
Its USB-C connector works both for input and output. That means you can charge it, and use it to charge other devices that support USB-C connection.
Proprietary platform
With its built-in Near Field Communication (NFC) technology, data can be transferred and connected. With the simple tap of your device to another, you can instantly exchange information.
Now you can grab your digital business card and all your social media links with your keys, replacing your stack of old paper business cards.
This feature can be accessed via proprietary platform Sherr.it, making it a secure and convenient way to carry important information with you the go.
If your smartphone doesn’t support NFC technology, you can simply scan the adhesive sticker’s QR code that comes with the pack as an alternative option.
With its Lost Mode feature by sticking the optional adhesive QR code on it, you can’t find your TAU 2 (and keys), through Rolling Square’s proprietary platform Sherr.it and set a message, as well as providing your contact information. This way, if someone finds your keys and scans the NFC tag or the QR code, they can read your message and contact you.
It comes in two classy colors – black and white and available for $27.
In 2020, Rolling Square team introduced TAU, the world’s first keying emergency power bank. Now, after 3 years of development, they proudly represent TAU 2 – even more pocketable, powerful, with new and unique features that led them to achieve stunning and worldwide known prizes, such as the CES Innovation and the Red Dot Design awards.
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