Published: Oct 12, 2010 3:56 AM EDT
Updated: Oct 12, 2010 12:28 AM EDT

LEHIGH ACRES, Fla. - How well do you know your child's toys?

"He brought it over to grandma's house to show me what it can do," said Sharon Shaffer, whose grandson picked up "noise magnets" at a grocery story.

She says the little $1.99 toy soon became a big problem; Shaffer believes the powerful magnets put her computer on the fritz!

"The computer started turning all rainbow colors, so right away I told him to get away from it," Shaffer said.  She said the computer improved, slightly, after he moved the toy away, but the computer now requires repairs.

"I read the back of (the package) and saw all the warnings on it."

On the package: warnings to keep the toy far away from electronics and pacemakers, like Shaffer has.

She's so worried about the magnets' potential effects, she wrapped it in layers of blankets after showing us.

WINK News didn't find any other reported concerns about the noise magnets.

Sweetbay stores say they've pulled the product, not because of complaints, but because the powerful magnets make the toy tough to lift off shelves.

The toy maker's website says their products meet all safety standards, and the risks are on the label.  But Shaffer says it serves as a reminder to families with gift-giving holidays approaching.

"Parents, grandmas, grandpas, this is cool, it looks cool, it does cool stuff, but are they really going to take time to read that little bitty warning?"  Shaffer said. "Take the time out to read the fine print."

WINK News was unable to reach anyone at the toy company for comment on Monday night.