alkera FPV Goggle Wireless Video Glasses with Headtracking System is designed for Remote Control Helicopter, cars, aircraft, etc Walkera ... for Remote Control Helicopter, cars, aircraft, spacecraft etc...This wireless Video Glasses give you the feeling of real pilot.Walkera ... 640 * 480RGB) 5.8G different bands ( 8 channels) and Headtracking system and other Built-in 5.8GHz 8 channel video receiver ...