The amazing reason Paralympic athletes keep shaking their medals

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The new medals at the Paralympics are bringing incredible joy to visually-impaired athletes.

Though the Paralympic medals have always had braille on them, all of this year's medals come with a new feature for the 4,300 athletes competing.

They rattle when shaken.

The special innovation for the Paralympic medals includes a tiny device inside each medal that creates a unique sound for medal-winners. Inside each medal comes a metal ring and a fluctuating number of steel spheres within the ring itself. When shaken, the gold, silver and bronze medals each have their own exclusive sound.

RELATED: Check out the gorgeous opening ceremony for the 2016 Paralympics

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2016 Paralympic Opening Ceremony
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2016 Paralympic Opening Ceremony
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. A performer takes part in the opening ceremony. REUTERS/Carlos Garcia Rawlins 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. A performer interacts with a robotic arm during the opening ceremony. REUTERS/Sergio Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. A performer interacts with a robotic arm during the opening ceremony. REUTERS/Ueslei Marcelino 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Fireworks erupt during the opening ceremony. REUTERS/Carlos Garcia Rawlins 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Brazilian Paralympic runner Marcia Malsar continues carrying the torch after falling as rain falls during the opening ceremony. REUTERS/Ueslei Marcelino 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Confetti falls during the opening ceremony. REUTERS/Carlos Garcia Rawlins 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. An athlete from Palestine takes part in the opening ceremony. REUTERS/Ueslei Marcelino 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. The cauldron is lit during the opening ceremony. REUTERS/Ueslei Marcelino 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Brazilian Paralympic swimmer Clodoaldo Silva carries the torch during the opening ceremony. REUTERS/Pool 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. The Brazilian (L) and Paralympic flags are raised during the opening ceremony. REUTERS/Ricardo Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Fireworks go off the opening ceremony. TSRIO2016 REUTERS/Jason O'Brien 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Fireworks erupt during the opening ceremony. REUTERS/Ricardo Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Performers take part in the opening ceremony. TSRIO2016 REUTERS/Jason O'Brien
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Performers take part in the opening ceremony. REUTERS/Sergio Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Performers take part in the opening ceremony. TSRIO2016 REUTERS/Jason O'Brien 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. National flags are seen during the opening ceremony. TSRIO2016 REUTERS/Jason O'Brien 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. A performer in a wheelchair takes part in the opening ceremony. TSRIO2016 REUTERS/Ueslei Marcelino 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Performers take part in the opening ceremony. REUTERS/Ueslei Marcelino 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes march into the arena during the Opening Ceremony of the Rio 2016 Paralympic Games at the Maracana Stadium. REUTERS/Bob Martin/Pool 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Brazilian Paralympic swimmer Clodoaldo Silva lights the flame during the opening ceremony. REUTERS/Sergio Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Brazilian Paralympic swimmer Clodoaldo Silva lights the flame during the opening ceremony. REUTERS/Sergio Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Brazilian Paralympic swimmer Clodoaldo Silva carries the torch during the opening ceremony. REUTERS/Sergio Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Philip Craven, President of the International Paralympic Committee, speaks during the opening ceremony. REUTERS/Ricardo Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Performers take part during the opening ceremony. REUTERS/Sergio Moraes
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Performers take part during the opening ceremony. REUTERS/Ueslei Marcelino 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Performers take part during the opening ceremony. REUTERS/Sergio Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Performers take part during the opening ceremony. REUTERS/Sergio Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Performers take part during the opening ceremony. REUTERS/Ueslei Marcelino 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Performers take part during the opening ceremony. REUTERS/Ueslei Marcelino 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Performers take part in the opening ceremony. REUTERS/Jason O'Brien 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from Poland take part in the opening ceremony. REUTERS/Ricardo Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from Brazil take part in the opening ceremony. REUTERS/Ricardo Moraes T
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from Vietnam take part in the opening ceremony. REUTERS/Ricardo Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from North Korea take part in the opening ceremony. REUTERS/Ricardo Moraes F
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from Brazil take part in the opening ceremony. REUTERS/Ricardo Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from Brazil take part in the opening ceremony. REUTERS/Ricardo Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from France take part in the opening ceremony. REUTERS/Ricardo Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from Spain take part in the opening ceremony. REUTERS/Ricardo Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from Iraq take part in the opening ceremony. REUTERS/Ricardo Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from Taiwan take part in the opening ceremony. REUTERS/Sergio Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from Britain take part in the opening ceremony. REUTERS/Sergio Moraes 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from Australia take part in the opening ceremony. REUTERS/Ueslei Marcelino 
2016 Rio Paralympics - Opening ceremony - Maracana - Rio de Janeiro, Brazil - 07/09/2016. Athletes from China take part in the opening ceremony. REUTERS/Sergio Moraes 
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The gold medals make the loudest noise with 28 spheres, followed by the silver with 20 and the bronze with 16. The varying amount creates a distinct sound for each type of medal, so the athletes are able to distinguish which medals they've won by the sound it makes when shaken.

In the Olympics, it's customary for athletes to bite their medals in excitement. Now, Paralympic athletes have their own creative way of experiencing "the sound of victory."

2016 Rio Paralympics - Day 4Photo: Getty

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