An adjustable counterweight for a yo-yo allows for the addition or subtraction of weight plates in a midsection of the counterweight assembly. The counterweight includes a first portion having at least one post, a second portion having at least one post, at least one weight plate having at least one aperture, and a bore that extends through the first portion and the second portion, and is configured to receive a fastener. The at least one weight plate is disposed between the first portion and the second portion.

There described a computerized yo-yo toy that uses an acceleration measuring device, a computation and control device, a communication device and entertaining devices to enhance the entertaining experience of playing with the computerized yo-yo toy. The acceleration measuring device measures the acceleration values of the computerized yo-yo toy. The computation and control device uses the measured acceleration values to generate control signals to control entertaining devices such as a light display device, an audio play device and an auxiliary device for an enhanced entertaining experience. The entertaining devices may be latched to the computerized yo-yo toy, which allows using different and new entertaining devices with the computerized yo-yo toy. The control signals are based on the measured acceleration values, the type of entertaining device latched to the computerized yo-yo and setup parameters received by the communication device from an external device, such as smartphone or tablet. The communication device may also send data from the computerized yo-yo toy to the external device, which allows the external device to analyze, store or display the data for an enhanced entertaining experience.

There described a computerized yo-yo toy that uses an acceleration measuring device, a computation and control device, a communication device and entertaining devices to enhance the entertaining experience of playing with the computerized yo-yo toy. The acceleration measuring device measures the acceleration values of the computerized yo-yo toy. The computation and control device uses the measured acceleration values to generate control signals to control entertaining devices such as a light display device, an audio play device and an auxiliary device for an enhanced entertaining experience. The entertaining devices may be latched to the computerized yo-yo toy, which allows using different and new entertaining devices with the computerized yo-yo toy. The control signals are based on the measured acceleration values, the type of entertaining device latched to the computerized yo-yo and setup parameters received by the communication device from an external device, such as smartphone or tablet. The communication device may also send data from the computerized yo-yo toy to the external device, which allows the external device to analyze, store or display the data for an enhanced entertaining experience.

A nested counterweight for a rotatable performance device includes an outer housing and an inner slider. The outer housing defines an interior volume and is configured to be positioned along a string of the rotatable performance device. The inner slider is also configured to be positioned along the string of the rotatable performance device. The inner slider is positioned within the interior volume on the outer housing in a nested configuration. The inner slider is positioned along the string away from the outer housing in a separated configuration.

A nested counterweight for a rotatable performance device includes an outer housing and an inner slider. The outer housing defines an interior volume and is configured to be positioned along a string of the rotatable performance device. The inner slider is also configured to be positioned along the string of the rotatable performance device. The inner slider is positioned within the interior volume on the outer housing in a nested configuration. The inner slider is positioned along the string away from the outer housing in a separated configuration.

There described a computerized yo-yo toy that uses an acceleration measuring device, a computation and control device, a communication device and an electric clutch device to effect the motion of the computerized yo-yo toy. The acceleration measuring device measures the acceleration values of the computerized yo-yo toy. The computation and control device uses the measured acceleration values to generate control signals to the electric clutch device. The electric clutch device creates or eliminates friction with an outer case of a ball bearing, based on the control signals, to affect the motion of the computerized yo-yo toy. The communication device receives setup parameters from an external device and transmits the setup parameters to the computation and control device. The computation and control device may further generate the control signals to the electric clutch device based on the setup parameters.

There described a computerized yo-yo toy that uses an acceleration measuring device, a computation and control device, a communication device and an electric clutch device to effect the motion of the computerized yo-yo toy. The acceleration measuring device measures the acceleration values of the computerized yo-yo toy. The computation and control device uses the measured acceleration values to generate control signals to the electric clutch device. The electric clutch device creates or eliminates friction with an outer case of a ball bearing, based on the control signals, to affect the motion of the computerized yo-yo toy. The communication device receives setup parameters from an external device and transmits the setup parameters to the computation and control device. The computation and control device may further generate the control signals to the electric clutch device based on the setup parameters.

A spinner apparatus is disclosed herein. In one embodiment, the spinner comprises a magnetic ring; a rod, wherein the rod extends through the middle of the magnetic ring; and a first cap, wherein the first cap connects to a first end of the rod; and a second cap, wherein the second cap connects to a second opposite end of the rod. In another embodiment, the spinner comprises a first magnetic ring; a second magnetic ring; a magnet spacer, wherein the magnet spacer is disposed between the first and the second magnetic rings; a rod, wherein the rod extends through the middle of the first and the second magnetic rings; a first cap, wherein the first cap connects to a first end of the rod; and a second cap, wherein the second cap connects to a second opposite end of the rod.

A yo-yo has at least one sensor configured to measure a parameter related to movement of the yo-yo, a transmitter configured to transmit the measured parameter to the computing device. A server is configured to determine a trick performed with the yo-yo based on the measured parameter, and to communicate the determination to one or more computing devices of different players.

A yo-yo has at least one sensor configured to measure a parameter related to movement of the yo-yo, a transmitter configured to transmit the measured parameter to the computing device. A server is configured to determine a trick performed with the yo-yo based on the measured parameter, and to communicate the determination to one or more computing devices of different players.