20 KHZ frequency range
Place your earphones in each of the two slots at one end
Wind the cord around the width of the card working your way from one end to the other
Secure the cord end in the other two slots when done winding
Instructions included (preprinted on one side). Card and earbuds are packed together in a polybag (earbuds not wrapped around card)

Technical Details

Product Details

Package Dimensions
Width : 4 inch
Height : 0.5 inch
Length : 5 inch

Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B00HSGWYIU