Probably every second user in the bins has at least one outdated working smartphone that is idle. Where to attach it if the sale is not profitable? You can buy an interesting gadget – PhoneDrone Ethos. The invention is a quadrocopter, consisting only of a frame with electric motors and propellers. The role of the processor, sensors and camera is performed just by a smartphone, for which a niche is provided. The drone is controlled using another mobile device based on iOS and Android with installed proprietary software. The maximum speed of PhoneDrone Ethos is 56 km / h, the battery life is 20 minutes. The product is able to climb to a given height, follow the owner, shoot photos and streaming video. USB gadgets are suitable for charging the gadget. Currently, the authors of the project have organized fundraising through Kickstarter, where PhoneDrone Ethos can be purchased for $ 235.