Independently tested Same product now used by rental car companies Small, light, flexible and unobtrusive - easy to carry in your pocket Size: 20 x 10 cm (Large size for mobile phones) Colour: Black/white/red/purple/green/blue/orange/coffee/rose red Feature: 1.100% Signal Blocking: The signal blocker pouch bag stiching with shielded material which stop thieves amplifying your fob signal and opening car, stop your cell phone and keyless entry fobs from being remotely accessed. No need considering of model and brand. 2.Mobile Phone Signal Jammer: Blocks Calls, SMS, Wi-Fi, 4G, NFC, Blocks & Unblocks in just 5 seconds! Discourages phone use while driving - no notifications, no distractions! Fit for iPhone Samsung LG Nokia all of phone. No need considering the size of phones. 3.Convenient and portable: Inner silver layer blocks signals, outer 680D waterproof oxford cloth black layer can be used as a normal case. Added holder in for carry and hang, convenient for you to use. 4.RFID Card Protector: The pouch blocking all signal for all device which can put in. With advanced RFID blocking technology, no more worries about personal information be scanned by the hackers and thieves. Can use as a RFID blocking sleeve. protect your money! And protect your privacy by blocking your phone's GPS tracking signal. Keep your car safe too by blocking the signal from your car-key fob.