For drones weighing lower than 250g without a camera, neither ID is critical. Having said that, you still really need to adjust to the UK’s drone rules. According to the Drone Code, This implies sustaining Visible connection with your drone, traveling no bigger than 120m above the bottom, remaining at https://www.aeroindustrial.com/product/matrice-300-parte-15-par-de-aspas-2195-grandes-alturas/