Lily camera drone br br it's a self-flying drone designed to autonomously track and record its owner without input from a pilot on the ground br once it's thrown into the air it begins automatically following and recording its target. br uses GPS to follow you around,and the device itself is waterproof to 1 meter underwater. br price : $999 br br battery : non-removable, good for around 20 minutes of flying time and requires about two hours to fully recharge br br minimum altitude : It maintains a minimum altitude of 5 ft 1.75m in flight,and doesn't exceed 50 ft 15m .