For Drones weighing below 250g with no digicam, neither ID is critical. That said, you still really need to comply with the UK’s drone rules. In accordance with the Drone Code, this means keeping Visible contact with your drone, flying no increased than 120m higher than the bottom, staying at https://www.aeroindustrial.com/product/dji-matrice-3d-con-dji-care-basic-1-ano/