Providing of training, namely, physical fitness training services

Chronographs for use as specialized time recording apparatuses; Computer mouse; Digital pH meters; Diving equipment, namely, helmets; Diving equipment, namely, protective diving shoes; Earphone accessories, namely, earphone cushions, earphone pads, cord management systems, earphone cases, and earphone extension cords; Electric door bells; Electronic black boxes for recording data; Electronic products for the manipulation of the frequency, time, and amplitude characteristics of audio signals, ...