3D spectacles; Egg timers; Electric door bells; Electronic collars to train animals; Electronic devices, namely, energy meters for tracking and monitoring energy usage; Flowmeters; Folding rulers; Galvanic cells; GPS tracking devices; Measuring rulers; Microphones; Rotating lights; Sandglasses; Self-timers; Telescopes; Time clocks; Traffic-light apparatus; Wall-mounted rulers for measuring a person's height; Computer mouse; Diving gloves