Carrying cases, holders, protective cases and stands featuring power supply connectors, adaptors, speakers and battery charging devices, specially adapted for use with handheld digital electronic devices, namely, cell phones, MP3 players, personal digital assistants; Cases for mobile phones; Cases for music, audio and related electronic equipment, namely, cases for audio tuners, audio receivers, amplifiers, tape players, compact disc players, MP3 controllers/players, audio mixers, audio speakers in the nature of music studio monitors, microphones, audio speakers, compact discs, audio tapes, portable computers, antennas, phonographic record players, audio recording equipment, and the cables associated with all of the foregoing equipment; Cases for smartphones; Cases for telephones; Earphone accessories, namely, earphone cases; Earphone accessories, namely, earphone cushions, earphone pads, earphone cases, and earphone extension cords; Earphones and headphones; Protective cases for smartphones; Protective covers and cases for cell phones, laptops and portable media players; Rechargeable batteries; Smartwatch bands; Smartwatch straps; USB cables