The present disclosure pertains to a race course system for remote controlled boat racing where the outer boundary of the race course is comprised of the exterior walls of a swimming pool enclosure and the internals walls of the race course is comprised of floating devices with connection point for interconnecting the floats and an anchoring device and adjustable length anchor tether attached to the bottom of a number of the floating devices. The floating devices can be attached to each other in various configurations to create various different race course layouts, such as an oval course, a figure eight course, or even an intricate road course configurations.

The system is a type of gliding device capable of gliding through different mediums, such as water. The body of the gliding device is comprised of buoyant material and is ideally chosen based on the best material to utilize the hydrographic printing process. The body encourages the system to rise in water and wings extend from the body and resist vertical motion providing little resistance to forward motion. A third wing may extend from the distal end of the body and have a rudder pivotably connected thereto, allowing a user to manipulate the flight path of the system through the water while the system slowly rises to the surface.

A soft and squeezable bath toy set for young children for use in bathtubs and/or pools is disclosed. The bath toy set includes containers, each container having a body, an inlet and an outlet. Each container includes a mounting member for connecting the container to a wall. The bath toy set includes a T-shaped pipe, angled connecting pipes and a tube assembly. The tube assembly includes a tube holder holding tubes. The tube holder includes a tube mounting member for connecting the tube holder to the wall. The containers position in different configurations and the tube assembly positions underneath the containers. The T-shaped pipe or the angled connecting pipes interchangeably connect the outlet of the containers above, and the inlet of the containers or the tubes below. The containers at the top receive water through the inlet and water flows down via the outlet into the container or the tubes positioned underneath via the T-shaped pipe and/or the angled connecting pipes.

A mechanized trolling device includes a flotation chamber, a power source and motor in a water-tight enclosed chamber, and a sheltered impeller. The device travels many times the distance that an angler can cast, and automatically shuts off after a set period of time. A fishing line attached to the device can be deployed so the angler can fish at the depth of the water where the device has travelled.

A mechanized trolling device includes a flotation chamber, a power source and motor in a water-tight enclosed chamber, and a sheltered impeller. The device travels many times the distance that an angler can cast, and automatically shuts off after a set period of time. A fishing line attached to the device can be deployed so the angler can fish at the depth of the water where the device has travelled.

A combination aquatic toy and a reservoir wherein the reservoir comprises a container to contain a body of water and a contactless electrical power transfer transmitter, the toy is a submersible or is submersible and comprises a body carrying a battery and a battery powered propeller (fin or screw propeller or foil or impeller or other) to drive the toy through the body of water and contactless power transfer receiver to receive power, when in sufficient proximity to the transmitter, from the transmitter.

An apparatus or educational toy comprising a main body (120, 220, 320, 520) and a drive mechanism (140, 240, 340, 540), wherein the drive mechanism (140, 240, 340, 540) comprises a reservoir (142, 242, 342) for storing a driving liquid, a discharge outlet (144, 244a, 244b, 344, 544a, 544b) through which the driving liquid is discharged from the main body (120, 220, 320, 520) to generate a driving thrust, a liquid delivery path (146, 246a, 246b, 346) for delivering the driving liquid for a reservoir outlet (148, 348, 448) to the discharge outlet (144, 244a, 244b, 344, 544a, 544b), and a threshold setting device (147, 347); and wherein the threshold setting device (147, 347) sets a threshold thrust level so that the driving liquid is to pass from the reservoir (142, 242, 342) and discharged from the discharge outlet (144, 244a, 244b, 344, 544a, 544b) upon reaching the threshold thrust level during operation.

An inflatable speaker includes a collapsible inflatable housing and a loudspeaker, the collapsible housing includes a circumferential side wall, a first end wall, a second end wall, and a valve for inflating the collapsible inflatable housing, wherein the first end wall includes a first inner layer, a first outer layer, and a speaker support plate between them provided with an audio transmission inner sound hole, the first outer layer is provided with an outer sound hole. The loudspeaker is positioned between the first inner layer and speaker support plate, a waterproof ventilated acoustic membrane is placed to cover the loudspeaker frame, a first waterproof adhesive permanently binds the waterproof ventilated acoustic membrane and speaker support plate together, and a second waterproof adhesive permanently binds the edge portion of the outer sound hole and speaker support plate together, thus, giving the inflatable speaker a higher level of protection.

An inflatable speaker includes a collapsible inflatable housing and a loudspeaker, the collapsible housing includes a circumferential side wall, a first end wall, a second end wall, and a valve for inflating the collapsible inflatable housing, wherein the first end wall includes a first inner layer, a first outer layer, and a speaker support plate between them provided with an audio transmission inner sound hole, the first outer layer is provided with an outer sound hole. The loudspeaker is positioned between the first inner layer and speaker support plate, a waterproof ventilated acoustic membrane is placed to cover the loudspeaker frame, a first waterproof adhesive permanently binds the waterproof ventilated acoustic membrane and speaker support plate together, and a second waterproof adhesive permanently binds the edge portion of the outer sound hole and speaker support plate together, thus, giving the inflatable speaker a higher level of protection.