Earphones; Megaphones; Smartphones; Bags adapted for laptops; Battery charge devices; Electronic book readers; Ethernet transceivers; Mobile hotspot devices; Portable media players; Power amplifiers; Projection screens; Rechargeable batteries; Self-timers; Semi-conductor memories; Smart watches; Video projectors; Videocameras; Wearable activity trackers; Wireless telephony apparatus; Digital event recorders for seismic data; Locomotive event recorders