Key case Spigen Klasden RFID Shield Black Rectangle

The Spigen Klasden RFID Shield Black Rectangle key case provides a compact and reliable way to protect keys and small contactless items from unauthorized radio-frequency scanning. Designed in a slim rectangular form with a matte black finish, this single-pack key case uses layered shielding materials to prevent transmission of RFID and other short-range wireless signals to and from a key fob or card. The case is made for everyday carry and aims to combine physical durability with signal-blocking performance for users who want practical protection without added bulk.

Advantages

This key case features multi-layer nano-fiber shielding that blocks RFID and similar radio transmissions, reducing the risk of signal relay or cloning attacks on keyless-entry systems. The rectangular, slim profile fits easily into pockets or bags and the durable construction resists wear from daily use. The neutral black design offers discreet protection while preserving quick access to keys when the case is opened and removed.

Suitable for

• Protection of keyless-entry car fobs from relay and signal-theft attacks
• Shielding contactless bank cards and identity cards from unauthorized scanning
• Everyday carry for commuters and travelers who want compact signal protection
• Use in pockets, purses or bags where small items need radio-frequency shielding

Key specifications

• Form factor: slim rectangular key case
• Color: black
• Material: multi-layer construction with nano-fiber signal-blocking layer
• Function: RFID and short-range wireless signal shielding
• Pack quantity: single unit
• Portability: pocket- and bag-friendly compact size

How to use

Place the key fob, contactless card or other small item inside the case so the item is fully enclosed. Close the case according to its design to ensure the shielding layers form a continuous barrier around the device. When needing to use the key or card, remove it from the case and return it to the pouch after use. Regularly check the case for signs of wear and ensure it remains closed while stored to maintain effective signal blocking.

Usage recommendations

For best protection, keep the key case closed whenever the key is not actively in use. Avoid exposing the case to heavy abrasion, sharp objects or prolonged moisture to preserve the integrity of the shielding layers. If you carry multiple devices, place only one key fob or card inside at a time to ensure consistent signal blocking.