3D printers; 3D printing pens

[ Antennas for wireless communications apparatus; Audio cables; Audio recorders; Audio speakers; Batteries and battery chargers; Cable television transmitters; Cables for electrical or optical signal transmission; Cell phone battery chargers; Computer cables; Computer cameras; Computer keyboards; Computer mouse; Computer network adapters; Computer network hubs, switches and routers; Computer peripheral devices; Consumer electronic products, namely, audio amplifiers, audio speakers, audio rece...