
The box is well designed but doesn't block signals. This is easily checked by placing the key fob in the box and standing next to the car. It opens just as easily as if it were out of the box. If you press hard on the box, it goes a little, but it's not worth the money.

π KRSCT Keyless Entry Remote Car Key for Ford 2011-2016 F150 F250 F350/Lincoln/Mercury/Mazda
12 Review

Unlock Your Lexus With KeylessOption Keyless Entry Remote Fob & Uncut Master Ignition Key Blade For RX330, RX350, RX400H, RX450H - Compatible With HYQ12BBT
33 Review

dualsense
27 Review

MONOJOY Faraday Box for Key Fob, Key Fob Protector, Signal π Blocker - Car Key Fob & Cell Phone RF Blocker, RFID Book Box
12 Review

2Buyshop 2 Pack Car Tissue Holder - PU Leather Napkin Box For Sun Visor & Backseat - Black
28 Review

Simplify Your Car Organization With Sposuit'S Collapsible Trunk Organizer - 11 Pockets & Reinforced Handles For Easy Grocery And Cargo Storage! (Grey)
27 Review

2 Pack JOYTUTUS Coin Holder: Universal Car Change Organizer For Most Trucks Accessories
27 Review

Transponder "T-Pass" TRP-4010 AVTODOR TOLL ROADS, black
46 Review