Magnetic RFID Blocking Badge Holder with BloxProx

Magnetic Holder - No lanyard or reel needed. This ID holder can still work with both, butwhy would you need it to? Completely shields HF (high frequency) and UHF (Ultra High Frequency) cards.Wind Resistant - No more bouncing and spinning of your ID and say goodbye to it blowing in the wind. The magnets make this holder stay where you put it! You can still insert your card into your computer while in the attachment clip.Product SKU: IDSH1701 Made in the USA.,Magnetic Holder - No lanyard or reel needed.

This ID holder can still work with both, butwhy would