Abstract: An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

Abstract: An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

Abstract: An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

Abstract: A length-adjustable collapsible headphone includes a headband comprising an upper section, a right lower section, and a left lower section, the upper section comprising an inner headband arm and an outer headband arm, the right lower section and the left lower section each comprising a scissor arm assembly having an inner scissor arm and an outer scissor arm, each of the inner scissor arms and the outer scissor arms comprising slide adjustment sub-assemblies. A pivot joint connects the outer headband arm to the inner headband arm so that the outer headband arm and the inner headband arm can rotate freely around an axis of the pivot joint. A left and a right pivot assembly connects respective inner scissor arms to respective outer scissor arms that are aligned with the axis of the pivot joint so as to maintain a common centerpoint allowing the headphone to collapse in a spherical motion to a space efficient closed state.

Abstract: A length-adjustable collapsible headphone includes a headband comprising an upper section, a right lower section, and a left lower section, the upper section comprising an inner headband arm and an outer headband arm, the right lower section and the left lower section each comprising a scissor arm assembly having an inner scissor arm and an outer scissor arm, each of the inner scissor arms and the outer scissor arms comprising slide adjustment sub-assemblies. A pivot joint connects the outer headband arm to the inner headband arm so that the outer headband arm and the inner headband arm can rotate freely around an axis of the pivot joint. A left and a right pivot assembly connects respective inner scissor arms to respective outer scissor arms that are aligned with the axis of the pivot joint so as to maintain a common centerpoint allowing the headphone to collapse in a spherical motion to a space efficient closed state.

Abstract: An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

Abstract: An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

Abstract: An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

Abstract: An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

Abstract: An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

Abstract: An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

Abstract: An apparatus for receiving one or more activity attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a circular aperture for receiving an accessory of a set of accessories. Each accessory of the set of accessories providing an activity for a user of the activity. Each accessory having an attachment platform configured to attach the accessory to the board. The attachment platform having a locking mechanism to engaging with a complementary locking mechanism of the board.

Abstract: An exercise board with interchangeable center and lateral exercise accessories. The center modules include several different types of devices, each designed to be used for different exercises. The center modules can include a bounce ball, a base that makes the deck unstable, for core workout, and a flat unit that is flush with the deck. The side accessories can include handgrips, skateboard trucks, foot straps, or flat units.

Abstract: An apparatus for receiving one or more attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a coupling mechanism and configured to receive one of the one or more attachments. Each attachment providing the exercise accessory to the deck and the coupling mechanism of each of the one or more openings being configured to couple the attachment with the opening after the opening has received the attachment and to attach the exercise accessory with the deck and provide the exercise mode associated with the exercise accessory.

Abstract: An apparatus for receiving one or more attachments including a deck having one or more openings along a long axis of the deck and between the top surface and the bottom surface of the deck. Each of the one or more openings having a coupling mechanism and configured to receive one of the one or more attachments. Each attachment providing the exercise accessory to the deck and the coupling mechanism of each of the one or more openings being configured to couple the attachment with the opening after the opening has received the attachment and to attach the exercise accessory with the deck and provide the exercise mode associated with the exercise accessory.

Abstract: An exercise board with interchangeable center and lateral exercise accessories. The center modules include several different types of devices, each designed to be used for different exercises. The center modules can include a bounce ball, a base that makes the deck unstable, for core workout, and a flat unit that is flush with the deck. The side accessories can include handgrips, skateboard trucks, foot straps, or flat units.