Audio- and video-receivers; instruments containing eyepieces, namely, a headset with a patented unibody lens system that provides an enlarged view of live video feed from a camera drone on a mobile phone screen; bags specially adapted for cameras and photographic equipment; cell phone straps; photographic, cinematographic and optical apparatus and instruments, namely, a headset with a lens for viewing live video feed from camera drones on a mobile phone screen, display screens for use in firs...