A golf putter head that can improve the golfer's ability by providing function features that create a consistent setup of putter head position in relation to the golf ball and golfer position in relation to the putter. Once the setup is consistent, further increase in the consistency of the golfer's stroke can be attained through building muscle memory. From the putter stroke, the hitting face can impart an accurate forward motion to the golf ball upon being stricken by the putter head. The putter can provide tactile feedback to the golfer during the golf swing while imparting a forward roll to the golf ball upon striking and can simplify the visual alignment of the putter head to the golf ball.

A golf putter that enables dual configuration, namely sighting & play modes whereby the golfer can view both the ball and the hole by means of a mirrored surface, but which is reversible so that the golfer can play within tournament rules. A removable mirrored training aid has a reflective side and can be removed, flipped to a non-reflective side, or simply replaced with a same-weighted non-reflective plate, for use in actual (non-practice) golf play. The golfer can practice his or her stroke while observing the image of the ball and hole in the mirror, and thereby imprinting the correct stroke mechanics into muscle memory. Then, after the golfer has reversed the re-attachable mirrored surface plate to present its non-reflective side, the golfer can use the putter in a round of golf.

A golf club head has a body defining a ball striking face. The body further has a first leg extending away from the ball striking face and a second leg extending away from the ball striking face wherein a void is defined between the first leg and the second leg. The body further defines a cover that extends over the void. The golf club head may further have support structures and adjustable weight members.

A system that wirelessly integrates actual drum equipment and singing equipment with a computer and the internet to allow musicians and or singers remotely located from one another to play music and or a competitive real or simulated music and or singing competition. An individual musician may opt to play music solo or practice to improve basic music, drumming, and or singing techniques. The system includes smart music and drum systems, an audio detection system, and drum motion sensing devices, all containing circuits and contact sensors or motion sensors, coupled with signal processing and radio frequency transmitter circuitry, thereby wirelessly communicating game performance information to a remote receiver-computer. The computer displays musician and or singing information, and visually simulates and controls a music and or a singing competition between two or more musicians, via the internet, having similar equipment and remotely located from each other. Standard drum sets may be retrofitted with the sensors and associated circuitry to convert such drum sets into smart drum sets for use with the system. Standard microphones may be retrofitted with the sensors and associated circuitry to convert such microphones into smart microphones for use with the system. The system employs specially developed computer software to process musician performance data, control the music competition, communicate music and information between musicians and or singers, generate and control visual simulations, and display singer and or musician performance information.

A cue or golf club head having a sighting aid, a golf club having the golf club head, and uses thereof.

Provided is an auxiliary apparatus for a golf putter including a coupling member detachably coupled to a shaft of the golf putter and a guide light emitting device coupled to the coupling member and configured to emit a guide light to help golf putting. The coupling member includes a first coupling member opened at upper and lower portions and one side thereof and detachably coupled to the golf putter through the opened space, and a second coupling member extending from the first coupling member and opened at upper and lower portions thereof, the second coupling member being configured to accommodate the guide light emitting device through the opened space.

A golf club head is provided having a club body having a front portion, a rear portion, a toe portion, and a heel portion. The club head also having a central portion connected with the front portion. A frame is connected with the central portion configured to provide a lightweight crown portion being located above an offset plane.

Systems and methods for motion capture and analysis are described. The system may include a motion sensor unit configured to capture data associated with movement of an object. The motion sensor unit is configured to be directly or indirectly coupled to the movement object at a first location. The system also includes a processor to process the captured data to determine one or more values and to translate the data and/or values to correspond to a second location on the movement object located away from the first location. The data and/or values, including translated data and/or values, may be transmitted by wireless transmitter and displayed by a display unit.

A golf swing training club comprising: (a) a shaft; (b) a golf head attached to a first, lower end of the shaft; and (c) a handgrip attached to a second, upper end of the shaft; wherein a standard longitudinal shaft bending angle () of the shaft is within a range of 45 to 90; and wherein a mechanical beam portion of the golf swing training club is characterized by a standard extensive shear modulus of at most 15.

A golf club head is provided having a club body having a front portion, a rear portion, a toe portion, and a heel portion. The club head also having a central portion connected with the front portion. A frame is connected with the central portion configured to provide a lightweight crown portion being located above an offset plane.