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Key2Pay “PI”

I have been fascinated by mathematics since childhood, so Pi is one of the most exciting numbers I love. 540 numbers after 3 have been calculated and built into this fascinating contactless payment device.
Below are 2 descriptions about PI. Have fun with it – LAKS😊

Almost simple:

PI, the Greek letter for p, or π, is the ratio of the circumference of any circle to the diameter of that circle. Regardless of the size of the circle, this ratio is always equal to pi. In decimal form, the value of pi is approximately 3.14.

Deeply technical:

The circle number (pi), also Ludolph’s number, Ludolf’s number or Archimedes’ constant, is a mathematical constant that gives the ratio of the circumference of a circle to its diameter.
This ratio is the same for all circles, regardless of their size.

The circle number is a transcendental and therefore also irrational number.
Its decimal fraction begins with {\displaystyle \pi =3{,}1415926\ldots }{\displaystyle \pi =3{,}1415926\ldots }, although in practice often only three significant digits are used: {\displaystyle \pi \approx 3{,}14}\pi \approx 3{,}14.[A 1]

The circle number not only occurs in geometry, but also has significance in other mathematical subfields and theories. For example, it can be used to connect the solution of the classical Basel problem with the theory of Fourier series.

Key2Pay is a key fob for contactless payment.
Secure – simple – convenient
Works completely independent of your mobile phone
without batteries.


About LAKS:

in stock

    Product Details

    1. Hold the keyfob to the payment terminal as shown on the picture.
    2. Keep your hand steady (not moving) for a few seconds – until the lights on the payment terminal turn green.
    3. You hear a beep and the transaction is complete.

    Length: 5 cm
    Width: 2,5 cm
    Height: 0,4 cm

    Special 4C printing with polymer coating. UV-resistant, scratch resistant, waterproof.

    Do not use solvents

    You can clean it with water-based household soaps and detergents. Solvent-based household chemicals may damage your LAKS Wearable.

    Avoid electromagnetic fields

    Some household electrical appliances can generate EM fields that are strong enough to affect the pay chip of your LAKS wearables. Do not leave your wearable near electrical appliances as it will stop working.

    Do not bend

    Bending will damage the integrated chip of your Key2Pay.

    Our shipping partners ensure fast and reliable delivery. Our LAKS Wearables are in stock and will be shipped within 3-5 business days from receipt of order.

    Please note: We can only ship out your order if you have successfully linked it to your card after the purchasing process.
    Only iCard customers don’t have to link our products beforehand.

    If you have any questions concerning our shipping, please contact our customer support.

    No problem if you change your mind. We grant a right of return or exchange within 14 days.

    Just put your wearable and delivery note or invoice (you can find it in your LAKS account) into the original envelope and just send it back to:

    LAKS GmbH
    Sebastianplatz 7/11
    AT – 1030 Vienna, AUSTRIA 

    After receiving your return, we return your money instantly.

    Please refer to our sales and return policy.

    LAKS Pay offers a 12-month warranty from the date of purchase. We manufacture our products with great care. However, if service is needed, please open a support ticket here.

    LAKS GmbH grants 12 months warranty from the date of purchase. If the purchased goods have defects, we undertake to comply with all applicable warranty provisions.

    If you have a complaint regarding obvious defects in material or workmanship of the goods we provide, including any damage incurred during shipment, return the goods to us immediately.

    Key2Pay – The Original

    This innovative idea combines both in one, a beautiful piece of art and contactless payment – making your life easier. Choose your favorite design and special material: there are more than 100 different styles, designed by LAKS in Vienna, Austria. Whether you are an art lover or prefer a funny message, we promise, there will be the perfect design matching your unique lifestyle.

    No charging

    Because of its analog technology, LAKS wearables never need charging. They are always ready to pay.

    Easier & more hygienic

    Always have your money with you without even your smartphone. No need of touching buttons or exchanging cash. Just pay contactless.

    Fast delivery


    Our LAKS Wearables are in stock and will be shipped within 3-5 business days from receipt of order and if necessary after receiving the registration code for personalization.

    Our shipping partners ensure fast and reliable delivery.

    If you cannot find a tracking number in your LAKS account, please contact us by email:  [email protected]