Musical instruments, namely, bass guitars

[ Amplifiers; Audio-receivers and video-receivers; Audio-video receivers; Audio- and video-receivers; Earphone accessories, namely, earphone cushions, earphone pads, cord management systems, earphone cases, and earphone extension cords; Earphones; Earphones and headphones; Headphones; Headsets for use with computers; Portable media players; Portable electronic recorder for measuring and recording multiple voltage, current and thermocouple readings from various transducers; Portable video came...