The Bluetooth 5.3 features as the LE coded PHY for an elongated range or the high speed 2M PHY are supplemented by the support of angle of arrival (AoA) and angle of departure (AoD) direction finding using Bluetooth. An output power of up to 8 dBm and the high sensitivity of the nRF52820 in combination with the LE coded PHY make the module very attractive in applications, where a long range is required. 

A 128-bit AES/ECB/CCM/AAR co-processor may be used for on-the-fly packet encryption.so the PAN1781 provides advanced wireless connectivity in a small package, smart home, industrial and much more applications.