Amazon.com: 3.7V 100mAh 20C Lipo Battery for WLtoys V272,Cheerson CX-10 Mini Quadcopter Estes Proto X, Syncro X, Hubsan Q4 Nano Quadcopter 4 Pack with USB Charger : Toys & Games
Hubsan H111 Q4 Mini 2.4G 4 CH RC Quadcopter – sUAS News – The Business of Drones
Northrop Grumman RQ-4 Global Hawk - Wikipedia
hubsan-The Leading provider of flight control and digital aerial photography systems solutions
Professional UAV - Q4 - Tor Robotics - surveillance / inspection / quadrotor