Access control and alarm monitoring systems; Backpacks especially adapted for holding laptops; Bass speakers; Batteries and battery chargers; Battery charge devices; Battery chargers for use with vehicle batteries, mobile phones; Binoculars; Calculating machines, data-processing equipment and computers; Cell phone covers; Earphones; Electric locks; Multi-outlet socket blocks; Personal stereos; Power strips; Public address (PA) and sound system accessories, namely, microphone stands, speaker s...