Duo Box
4.7/5 · 499 reviews- Free US shipping
- 100-day returns
- 2-year warranty
- Ships within 24-48 hours
Two side-by-side compartments: both your cars, or your key and its spare, shielded every night by the door.
Shipping & returns
Free USPS tracked shipping on every U.S. order. Orders ship within 24-48 hours. Returns accepted within 100 days.
Questions about this product
Everything you need to know before you protect your key.
- Ships within 24-48 hours
- 100-day returns
- 2-year warranty
Still have a question?
Send us a message. We reply within 24 hours.
Will the case damage my key fob?
No. The case blocks the signal without touching your key's electronics or battery. The lined interior helps prevent scratches.
Does my key work normally once it's out?
Yes, instantly. As soon as you open the case, your key fob transmits as usual. Nothing to reset or re-pair.
Will my key fob fit?
Check the interior dimensions in the product description and compare them with your key fob (length × width × thickness).
Does it work with my car?
Yes. The case blocks the key fob's own signal, so it works regardless of your car's make or model.
How do I test that the case blocks the signal?
Put your key in the case and close it, walk up to your car and pull the door handle. If it stays locked, the signal is blocked. Open the case and the car unlocks again.