The vehicle recognises the fob when it's in range and unlocks the doors. Criminals can exploit this via a wireless relay attack. Using a radio frequency relay booster, it's possible to pick up and then transmit a key fob signal to trick the car into thinking a fob is present.
eBay
Yoshitomo Nara Handmade Beaded Keychains
Aliexpress UK
Features "secured by design" UK police preferred specification. This product blocks radio signals as well as passive RFID including calls, SMS, Wi-Fi, Bluetooth, RFID, 4G and NFC. Black Signal Blocker.
eBay
choso keychains Y2K
Aliexpress UK
Effectively blocks all radio signals (RFID, WiFi, Bluetooth, GSM, 4G/5G) to stop thieves from cloning or hacking your car’s keyless entry system. Protect your car 24/7 with zero effort. Pouches size: 14 x 10 cm.
eBay
Handmade ivantill keychains aesthetic
Aliexpress UK
It can provide a complete blocker, which prevents thieves from picking up and relaying signals from your for key which can secure your car and shield against break-ins and keyless ignition theft. It is constructed with premium PU Leather and two-layers of shielding materials that can provide complete blocker.
eBay
Handmade Len and Rin matching keychains，Y2k Jewelry，
Aliexpress UK
Description: Perfect size and space for all car keys from brands: our Key bag with a size of 13.2*12.9cm , except to ensure that the Faraday bag works well, this handy key fob bag is the perfect size to protect your keys, integrated access cards or other small electronic devices STRONGER SIGNAL BLOCKING - Premium PU material + zinc alloy hook + fully wrapped insulation perfectly ensure that the RFID car key box blocks 100% of all signals. All you need to do is put your car keys into this Faraday bag to prevent your car security system from being hacked. Protect your car anytime and anywhere and ensure complete safety. .
eBay
the guy she was interested in wasn't a guy at all/green yuri keychains
Aliexpress UK
These signals are used by keyless entry systems to communicate with your car. Cost-Effective Security Solution : The Car Key Signal Blocker Box is an affordable way to protect your car from keyless entry theft without the need for costly security upgrades or complex systems.
eBay
mizi and sua inspiration keychain-
Aliexpress UK
After the phone is placed in the inner layer for about an hour, the prompt tone will change to "Hello, the phone you dialed is turned off", but the phone itself is not turned off! It has nothing to do with the shielding bag.
eBay
1pc/2pcs Cute Kawaii Axolotl Keychain
Aliexpress UK
Material: Carbon Fiber. 1 Bag for Key Fob. Due to the light and screen setting difference, the item's color may be slightly different from the pictures.
eBay
Handmade Soju Keychain Cute Coquette Unique Gift
Aliexpress UK