Find HS Code and trade information for car key signal blocker case

Car Key Signal Blocker Case

A car key signal blocker case, also known as a Faraday box or pouch for car keys, is a protective enclosure designed to prevent the unauthorized duplication or remote access of keyless entry car key fobs. These cases utilize the principles of Faraday cages to mitigate the risk of relay attacks and other forms of key fob hacking.

Material

These cases are typically constructed from materials that effectively block radio frequency (RF) signals. Common materials include:

• Multiple Layers of RF Shielding Fabric: Often a combination of copper, nickel, and polyester fibers. This is the most prevalent material due to its flexibility and effectiveness.
• Metal Enclosures: Aluminum or steel boxes provide robust shielding, though are less convenient for daily use.
• PU Leather with Shielding Layer: A more aesthetically pleasing option, incorporating a shielding layer within the leather construction.

Purpose

The primary purpose of a car key signal blocker case is to protect against:

• Relay Attacks: Thieves use signal amplifiers to intercept and relay the signal from a key fob inside a home to a vehicle outside, allowing them to unlock and start the car.
• Key Fob Cloning: Unauthorized duplication of the key fob's signal to gain access to the vehicle.
• Data Theft: Preventing the interception of rolling codes or other data transmitted by the key fob.

Function

The case functions as a Faraday cage. A Faraday cage is an enclosure formed by a conductive material. When a key fob is placed inside, the conductive material blocks external radio frequency signals from reaching the fob, and prevents the fob's signal from being transmitted outwards. This effectively isolates the key fob from potential attackers.

Usage Scenarios

• Home Security: Storing key fobs inside the case at home to prevent attacks while the owner is present.
• Public Locations: Using the case when in public areas such as restaurants, shopping malls, or airports, where the risk of signal interception is higher.
• Travel: Protecting key fobs during travel, especially in areas with known security concerns.

Common Types

• Pouches: Small, fabric-based enclosures with a closure mechanism (e.g., Velcro, zipper, drawstring). These are the most common and convenient type.
• Boxes: Rigid enclosures, typically made of metal, offering more robust shielding but less portability.
• Key Fob Sleeves: Designed to fit snugly around the key fob, offering a more discreet but potentially less effective level of protection.
• Signal Blocking Wallets: Incorporate shielding layers to protect both key fobs and credit cards.

Based on the provided information, the following HS codes may be relevant to a car key signal blocker case:

• 9112204000: Clock cases and cases of a similar type for other goods of this chapter, and parts thereof: Cases: Cases of metal. This code covers metal cases, which could apply if the signal blocker case is constructed from metal. The two-digit sections represent: 91 – Clock and watch making machinery and parts; 12 – Clock cases and cases of a similar type, and parts thereof; 20 – Cases; 40 – Cases of metal.
• 9112208000: Clock cases and cases of a similar type for other goods of this chapter, and parts thereof: Cases: Other cases. This code applies to cases not specifically of metal, potentially covering plastic or composite materials used in the signal blocker case. The two-digit sections represent: 91 – Clock and watch making machinery and parts; 12 – Clock cases and cases of a similar type, and parts thereof; 20 – Cases; 80 – Other cases.
• 8548000000: Electrical parts of machinery or apparatus, not specified or included elsewhere in this chapter. If the signal blocker case contains electronic components to block the signal, this code may be applicable. The two-digit sections represent: 85 – Electrical machinery and equipment; 48 – Electrical parts of machinery or apparatus.

Regarding HS code 9112204000 and 9112208000, the material of the case is a key factor in determining the correct classification.