Specifications: Function of the magnetic ring: the magnetic ring can play a good anti-interference role, and it can prevent display shielding, snowflakes and surrounding miscellaneous signals from invading the equipment. Under the of magnetic ring, normal and useful signals can pass through well, and high-frequency interference signals can be well suppressed. So it is not surprising that you can see the magnetic ring on electronic equipment, machinery, even high-end data lines and signal lines features: Size: 10 * 5 * 3mm, 14 * 8 * 4mm, 22 * 14 * 12.7mm (optional) Applications: TV, radio, inductor, DVD, power supply, etc Quantity: 10 pieces The package includes: 10 * Magnetic ring Function of the magnetic ring: the magnetic ring can play a good anti-interference role, and it can prevent display shielding, snowflakes and surrounding miscellaneous signals from invading the equipment. Under the of magnetic ring, normal and useful signals can pass through well, and high-frequency interference signals can be well suppressed. So it is not surprising that you can see the magnetic ring on electronic equipment, machinery, even high-end data lines and signal lines : Size: 10 * 5 * 3mm, 14 * 8 * 4mm, 22 * 14 * 12.7mm (optional)