A variety of improvements to portable electronic devices are disclosed, particularly electronic devices designed for use in and around water. The improvements include a more secure interface jack, improved waterproofing techniques, improved battery stability, and improved device functionality. One or more of the disclosed improvements may be incorporated into a variety of portable electronic devices.

An apparatus is used with throwable implements. The apparatus includes a base having a central portion and a peripheral edge. A first container is positioned on the central portion of the base. A plurality of second containers is positioned along the peripheral edge of the base and radially about the first container, wherein the plurality of second containers are smaller than the first container, and wherein an upper rim edge of the first container is positioned higher than upper rim edges of the plurality of second containers. The apparatus may be floatable and used primarily in water-based settings.

A ball game device and system includes a ball-rebounding body having a frame within which a resilient surface is suspended. The frame is configured to be immovable for optimizing ball rebound. In this way, the body can be used on virtually any surface and the game played in virtually any environment. Preferably, the frame would have a base and a rebound surface-supporting structure. The resilient rebound surface is continuous and is configured to be variably tilted. The resilient surface is conical such that ball rebound and trajectory is rendered unpredictable, or predictable depending on where the ball strikes the resilient surface and/or a centrally disposed positioned within the rebound surface. In the preferred embodiment, defense boundaries offensive lines and other features are included to provide a wide variety of game formats. Notably the centrally disposed surface provides a spot that the thrower can aim at to maximize ball rebound.

A Pilates Aquatics Device (PAD) including a board, the board being generally rectangular, planar, buoyant, and having top and bottom surfaces, first and second sides that are generally parallel to one another with a longitudinal axis midway there between, first and second ends generally perpendicular to the longitudinal axis, and a strap defining three loops on the top surface of the board, the loops aligned along the axis, the loops defining openings perpendicular to the axis for insertion of a user's hands or feet to control the PAD.

A device for measuring physical activity of a user during swimming is provided, which includes the following: a sensor unit adapted and dimensioned to be coupled with swimming goggles, wherein the sensor unit includes a motion circuitry configured to measure physical motion of the user; an optical cardiac activity circuitry configured to be placed at least partially against a body tissue of the user and to measure cardiac activity of the user; and a wireless communication circuitry configured to transfer data between the device and at least one external device, wherein the wireless communication circuitry is configured to transfer physical activity data of the user to the at least one external device, and the physical activity data includes at least one of motion data obtained using the motion circuitry, cardiac activity data obtained using the cardiac activity circuitry.

A system and method for two swimmer wings designed using biomimicry and inspired by winged creatures/birds of flight as well as the fore flippers of a sea turtle. The swimmer wings are designed for users to traverse long distances instead of relying on personal watercrafts or boats to not only help sustain the environment by reducing the carbon footprint but also provide physical exercise to improve the user's well-being. The swimmer wings include a board, an arm guard which shields the user's forearm, and arm fasteners that secure the user's forearm between the board and the arm guard.

A wave pool and wave generating mechanism are disclosed. The wave pool includes a bathymetry that includes a dynamically shapeable reef along a length or circumference of a channel that defines the wave pool. The wave generating mechanism includes a foil that has a shape for bi-directionality based on an adjustment of a yaw angle of the foil. The foil can be further controlled to increase or decrease certain surface areas or other angles of interacting with water in the wave pool.

A device and method for enhancing swimming exercises which can be used with the swimmer's legs, hands and head. The device can be a closed cell EVA foam sphere having opposite sides formed into concave cavities. The cavities permit a swimmer to position the device between his/her knees and against which the swimmer must apply leg-closing pressure. This causes the swimmer to maintain streamline during the entire pulling phase of the arm movement of the swimming stroke. With the device positioned at the same location, breaststroke kick training can also be enhanced as it causes the swimmer to apply pressure to maintain proper knee distance during kicking. Alternatively, the device can be held in one hand while the other hand is used to implement the particular swim stroke, and the device can be exchanged easily to the other hand. The device can also be placed under the chin during swimming exercises.

The invention concerns a swimming float presenting an upper wall whereon the distal part of an arm of a user is intended to be fixed and a lower propelling wing, the float being equipped with at least one fixing device comprising at least one strap which is arranged to be able to support the distal part on said upper wall, the fixing device having at least one loop and an adjusting element, each one connected to the upper wall being spaced out transversally on both sides of the upper wall, the strap being joined sliding into the loop while presenting a free end which is arranged to be able to be bound in the adjusting element by adjusting the size between the strap and the upper wall.

An apparatus and method for swim training are disclosed herein. In one embodiment, a cable is secure to a starting block or other fixed object at or near the edge of a pool, and the cable is then extended into the pool. The cable includes, along its length, fixed securement points to which multiple swimmers may be secured, via belts worn by the swimmers, to the cable. Because the swimmers are secured to fixed positions along the cable, multiple swimmers may swim in the same lane without interfering with each other. In another embodiment, the cable may be secured at both ends of the pool.