B51 is one of our best car lock jammers in stock. It was designed to cut the radio transmission between a keyless remote and its corresponding receptacle in the car.
Unlike its previous model B37 jammer, which, by the way, had some tiny issues with 868MHz keys, B51 does not arise the above-mentioned issue. It’s flawless.
Therefore, it blocks 315MHz, 433-434MHz and 866-868MHz frequencies with ease. It jams car radio remote controls, including AUDI, Benz and BMW models.
You can easily say that this is one of the best products you’ll find on the market.