"iBKS Card is officially the first beacon that is compatible 
with iBeacon™ and Eddystone™ at the same time."
- Accent Systems
This is the thinnest beacon produced by Accent Systems. It is based on Nordic Semiconductors nrf51822 chipset. Just as the other iBKS beacons, it is FCC and CE certified.
It is provided out of the box with custom configuration, but all parameters can also be modified through the iBKS Config Tool App (available for iOS and Android)
This beacon is not waterproof so its use is strongly suggested indoors.
More Features:
- Bluetooth Low Energy
- Range up to 100m (we recomend to limit the range to 90m or less)
- Sensitivity up to -92 dBm
- Replaceable batteries
- Battery life up to 18 months (depending on Tx power and interval)
- Wearable
- 100% Configurable Parameters
- Firmware update Over The Air.
- Optional Sensors:
- NFC
- RFID
- Accelerometer
- Movement
Other useful resources about iBKS Card: