Photographic, cinematographic, audiovisual, and optical apparatus and instruments; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; computers and computer peripheral devices; mobile phones; computer hardware and software for telephone and video conferencing; computer software for streaming content; telecommunications software; computer software for controlling audiovisual equipment and electronic products; cameras, speakers, surround sound systems, hi-fi sound systems, microphones, monitors, touchscreen monitors, projectors, televisions, media players; audiovisual system and devices for use in telephone and video conferencing; audiovisual system and devices for use in telephone and video conferencing featuring speakers, microphones, and cameras; tablet computers, tablet monitors, electronic tablets; remote controls for audiovisual equipment, remote controllers, remote controllers for controlling electronic products, digital electronic controller; covers, cases, and protective films for tablet computers; stands adapted for tablet computers; audiovisual system and devices for use in telephone and video conferencing featuring speakers, electronic interactive whiteboard, microphones, and cameras; handheld portable audiovisual devices for use in telephone and video conferencing featuring speakers, touchscreen, microphones, and cameras; USB device featuring cameras, microphones, and speakers; USB hardware; USB operating software; USB device for telephone and video conferencing; electronic device featuring cameras, microphones, and speakers for use in telephone and video conferencing; sensors and detectors; sensors and detectors for use in telephone and video conferencing; computer software for identifying participants in telephone and video conferencing; computer software for filtering background noise; and parts and fittings for the aforesaid