1. A portable electronic device comprising:
a body defining a recess and two grooves, the grooves disposed on opposite sides of the recess;
a speaker being received in the recess; and
a housing including a main section, the main section defining a main hole and two subsidiary holes, the main hole comprising four arcuate through holes lying along a same circular circumference and surrounding the speaker, the housing engaging with the body, the main hole aligning with the speaker, and the grooves aligning with the subsidiary holes, the main hole and the subsidiary holes transmitting the sound from the speaker to outside of the portable electronic device.
2. The portable electronic device as claimed in claim 1, wherein the subsidiary holes are disposed between two sides of the main hole.
3. The portable electronic device as claimed in claim 1, wherein the recess and the housing defines a main sound channel, the groove and the housing define a subsidiary sound channel, the main sound channel and the subsidiary sound channel transmit the sound from the speaker to outside of the portable electronic device.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A swing training system comprising:
a surface formed of a photoreactive indicating material; and
a swing training device comprising an indicator adapted for movement over the surface,
wherein the swing training device is capable of interacting with the photoreactive surface to form a visual representation of the path of the swing training device.
2. The swing training system according to claim 1, wherein the indicator comprises:
a first light source; and
a second light source.
3. The swing training system according to claim 2, wherein the first and second light sources are UV lasers capable of reacting with the photoreactive indicating material.
4. The swing training system according to claim 3, wherein the swing training system further comprises:
a third light source; and
a power switch that activates at least one of the first, second, and third light sources.
5. The swing training system according to claim 2, wherein the first light source is a pair of UV lights.
6. The swing training system according to claim 4, wherein the power switch is a centrifugal switch compressed by the centrifugal force of a weight when the device is swung.
7. The swing training system according to claim 4, wherein the power switch comprises an accelerometer.
8. The swing training system according to claim 2, wherein the first light source is a UV laser.
9. The swing training system according to claim 2, wherein the second light source is a red laser.
10. The swing training system according to claim 2, wherein the indicating material is a light-reactive material.
11. The swing training system according to claim 2, wherein the indicating material is a phosphorescent material.
12. The swing training system according to claim 3, wherein the device further comprises a fourth light source positioned on the same axis as the third light source and directed outwardly from a handle.
13. A golf swing training device, comprising:
a handle operatively connected to an indicator through a shaft, the indicator comprising,
a plurality of UV light sources capable of interacting with a photoreactive surface adapted to provide an indication of movement by the device,
a first laser light source positioned to direct a beam of light extending on a center axis of the shaft, and
a centrifugal power switch for activating the plurality of UV light sources.
14. The golf swing training device according to claim 13, wherein the laser light source and the plurality of UV light sources are positioned in a single plane.
15. The golf swing training device according to claim 13, wherein the plurality of UV light sources is a pair of UV light sources.
16. The golf swing training device according to claim 15, further comprising a second laser light sources positioned proximal to the handle and extending 180 degrees with respect to the first laser light source.
17. The golf swing training device according to claim 13, wherein the plurality of light sources have a wavelength in the range of about 100 to 600 nm.
18. The golf swing training device according to claim 13, further comprising a centrifugal power switch compressed by the centrifugal force of a weight when the device is swung.
19. A golf swing training system, comprising:
a photoreactive indicating surface;
the golf swing training device in accordance with claim 13.
20. A method for practicing a golf swing using a golf swing training device, the method comprising the steps of:
positioning an photoreactive indicating material on a surface;
activating the golf swing training device, wherein the golf swing training device includes a plurality of light sources, at least two of the plurality of light sources are capable of interacting with the photoreactive indicating material;
swinging the golf swing training device such that at least two of the plurality of light sources pass over the indicating material, wherein the indicating material and at least two of the plurality of light sources interact with each other to provide a visual representation of the path of the swing device as the swing device is moved over the indicating material;
comparing the visual representation of the path with indicia disposed on the indicating material surface, wherein the indicia represent a desired path of movement of the swing device; and
swinging the swing device with a modified swing path based at least in part upon the visual representation of the first swing.