FOSTERSOURCE

Batteries, electric; Cell phone covers; Electric door bells; Fibre-optic cables; Headphones; Hourglasses; LCD projectors used to display advertisements; Light emitting diodes (LEDs); Megaphones; Metronomes; Monopods used to take photographs by positioning a smartphone or camera beyond the normal range of the arm; Network routers; Portable and handheld digital electronic devices for recording, organizing, transmitting, manipulating, and reviewing text, data, image, and audio files; Protective helmets; Remote video monitoring system consisting primarily of a camera and video monitor for recording and transmitting images to a remote location; Rotating lights; Scales; Surveyors' levels; Telemeters; Time recording apparatus; Verniers; Video monitors; Acoustic membranes; Data synchronization cables