Samurai Japan Smart Key Case: Relay attack prevention
Ever worry that a thief could clone your car key's signal from across the street? That's the reality of relay attacks, a modern-day car theft trick. The Smart Key Case tackles this head-on. It's a sleek, no-fuss shield that blocks radio waves, keeping your key's signal locked down tight. Designed specifically for L-sized smart keys, it fits a broad swath of today's vehicles without a hitch. Slip your key inside, and boom—instant protection. It's perfect for dodgy parking lots or city living, where these hacks are rampant. Built from tough materials, it shrugs off daily abuse while giving you that extra layer of security. Pro tip: make it a habit to stash your key in this case whenever it's not in use. Because why make it easy for the bad guys?
Features
- Radio wave blocking
- L size compatibility
- Durable construction
- Easy to use
- Relay attack prevention
General specs
- Brand: Samurai Japan
- Seller: Joom
- ID: 68a4e945cce08401022dbd1f
- Size: L
- Compatibility: Smart keys
- Function: Radio wave blocking, Relay attack prevention
- Material: Unspecified durable material
- First listed by seller: 8/24/25
If you are interested in more details, you can find full information on the seller's page.
View on seller's site
#publicidad
$62.18
Last price update: 8/24/25
Out of stock
Shipping options
Delivery to 
United States
United States
Unavailable
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Smart Key Case Relay attack prevention
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| Brand | Samurai Japan | FORFEND Security | Mijia | MSR X6 | TGCFING | YHV |
| Model | FORFEND Smart Home Safe | L1-Sliver | AF05B01 | FYL-CA00-1 | ||
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| Price | $62.18 | $199.99 | $99.90 | $79.99 | $49.99 | $139.99 |
| Seller | Joom | Amazon | Gshopper | Amazon | Amazon | Amazon |
| Update | August 22, 2025 | December 6, 2025 | July 25, 2024 | December 6, 2025 | December 6, 2025 | December 9, 2025 |
| Material | Unspecified durable material | Steel | Zinc | Zinc | ||
Smart Key Case
$62.18
