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Headphones; Headsets; Loudspeakers; Microphones; Acoustic membranes; Cabinets for loudspeakers; Loud speaker systems; Portable vibration speakers; Smart home hubs using artificial intelligence (AI) comprised of voice-activated speakers, computer hardware, and recorded software for controlling networked devices in the internet of things (IoT), operating internet-enabled and connected lighting apparatus and home security alarms; Wireless microphones with integrated speakers; Wireless speakers