Headphones; Batteries, electric; Cases adapted for holding smartwatches; Earphone accessories, namely, earphone cushions, earphone pads, earphone cases, and earphone extension cords; Game headphones; Headsets for mobile telephones; Semiconductor chip sets; Semiconductor chips; Smartwatch straps; Wearable computers in the nature of smartwatches; Wearable video display monitors; Wireless cellular phone headsets; Wireless headsets for smartphones