The PhoneCard is a harmonisation for cordless phones (DECT), baby monitors and e-readers. It is placed on or inside the device – in the battery compartment of the handset, for example – and works without electricity. It changes neither transmission power nor reception.
What it is intended for
- Cordless phones (DECT)
- Baby monitors
- E-readers
- Bluetooth devices
What it is not intended for
The PhoneCard is not designed for smartphones with 5G or LTE, for laptops or tablets – these devices work with several radio technologies at the same time. For those we developed the stronger BioPatch, which is attached directly to the device.
Attaching it
The PhoneCard is very thin and fits into cordless phones and Bluetooth devices, placed under or over the battery. On devices that cannot be opened, it can simply be stuck to the back. It needs neither mains power nor a battery.
Technical data
- Material: 100 % carbon
- Dimensions: 30 × 17 × 0.17 mm
- Unlimited durability
The illustration on this page is greatly enlarged.
Together with our other products
Our products are matched to one another and intended to be used together, worn on the body as well as installed in the house, in any combination. PhoneCards are also part of our BioHome package.
What our customers write
It is best to read for yourself what customers report about this product – next door, in the “Reviews” tab.








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