Alarm monitoring systems; Batteries, electric; Car video recorders; Computer peripheral devices; Data cables; Data processing apparatus; Earphones and headphones; Electric door bells; Eyeglasses; Fire alarms; Gloves for protection against accidents; Loudspeakers; Portable media players; Scales; Smoke detectors; Sound alarms; Sound recording apparatus; Wearable activity trackers; Computer mouse; Goggles for sports; Light emitting diodes (LEDs)