B

Acoustic membranes; Blank USB flash drives; Cabinets for loudspeakers; Data processing equipment, namely, couplers; Educational apparatus, namely, manipulative blocks used as teaching aids for the visualization of math concepts; Electric navigational instruments; Headphones; Horns for loudspeakers; Microphones; Mobile telephones; Photographic cameras; Smartwatches; Tablet computers; Wireless headsets for smartphones