This is the place to ask questions relating to the Bluetooth Low Energy SoC by Dialog (1564-1053-ND). This is a BLE System on Chip that can be developed using the DA14585 Development Kit-Pro. It is a very low power SoC that has an integrated microphone interface, 2 Mb of Flash memory, and 96 kB of ram.
For the video we connected the Bluetooth SoC up to a peripheral device (iOS smart phone)
Video
Product - DA14585 Development Kit Pro