Introduction
Looks as though some experience with a soldering tool may be necessary, so make sure to be safe with these steps!
Tools
Parts
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First, apply pressure with your thumb on the top of the battery cover.
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Next, pull down on the cover until it begins to slide.
 
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Finally, once the cover is completely off, pry up the old batteries with your finger or a strong, skinny tool (i.e. spudger).
 
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Unscrew the six 8.0 millimeter long, #0 screws on the backside of the case using the Phillips #0 screwdriver.
 
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Place the speaker back inside the shell casing in the same way that it was originally placed.
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Accurately use a polyurethane glue around the rim of the speaker to mount it firmly back inside the plastic casing.
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.
What is the radius of these CBS
Boyd Ratley -