Wearable activity trackers; Selfie sticks; Cases for mobile phones; Tape recorders; Audio and video receivers; Microphones; Camcorders; Portable media players; Baby monitors; Rearview cameras for vehicles; Headsets; Video recorders; Video monitors; Wireless headsets for smartphones; Endoscopy cameras for industrial purposes; Sound reproduction apparatus; Wireless speakers; Electron microscopes; Magnifying glasses; Night vision goggles