The PAN1770 is a Bluetooth 5.1 Low Energy (LE) module based on the nRF52840 single chip controller and the antennaless version of the flagship PAN1780.
The ENWF9408AVEF is a microSD adapter which includes the PAN9028 module with a PMIC, a MicroSD host interface, a UART interface and a u.FL antenna connector.