For drones weighing below 250g without a camera, neither ID is critical. That said, you still need to comply with the UK’s drone guidelines. Based on the Drone Code, This implies retaining visual contact with your drone, traveling no better than 120m above the ground, staying not less than 150m https://www.aeroindustrial.com/product/dji-matrice-300-350-bateria-inteligente-tb65/