Upgraded fireproof and waterproof Faraday bag, large Faraday bag (for car keys) in 4 sizes, signal blocking bag (for tablets, mobile phones, keychains) (4PS(14 * 9cm+20 * 12cm+27 * 20cm+33 * 26cm))

• Comprehensive signal shielding, worry-free privacy: Using high-quality nano-shielding materials (silicone-coated glass fiber + metal fiber), it effectively shields all signals (10MHz-3GHz) such as RFID, Bluetooth, GPS, Wi-Fi, EMI, EMP, etc., preventing hacker tracking, cloning, relay attacks and data theft, and protecting privacy and security.
• Extreme physical protection, sturdy and durable: It has excellent waterproof performance, amazing high temperature resistance (up to 700℃) and impact resistance. The lightweight and foldable design effectively absorbs collisions and scratches, providing sturdy and reliable physical protection for your electronic devices (tablets, mobile phones) and valuables.
• Specially designed to prevent key relays and protect your car: With an integrated keychain design, the Faraday bag completely shields the car key signal, completely blocking thieves from using signal repeaters for keyless theft, and is an essential safety equipment to prevent vehicle theft. The safety flap ensures a tight closure.
• Health protection & convenient life: Effectively reduce exposure to radiation from electronic devices and protect your health. You can make your phone "unreachable" without turning it off and enjoy a quiet moment. The internal Velcro closure and inner pocket design ensure the shielding effect and prevent the demagnetization of bank cards/ID cards.
• Portable and versatile & worry-free after-sales service: Lightweight and durable, it can be used as an everyday wallet, tablet case or travel storage bag to accommodate mobile phones, tablets, documents, cash, etc. Provide 24-hour email support, 30-day refund, 100% satisfaction guarantee, zero-risk shopping.

Specifications and Details Material: Nano-shielding material (Silicone-coated fiberglass + Super-shielded metal fiber) Available sizes (approx.): 14cm x 9cm / 20cm x 12cm / 27cm x 20cm / 33cm x 26cm (Please choose the appropriate size according to your device) Color: Classic Black Package Included: 1 x Signal Shielding Bag