Description:The Signal Blocking Bag blocks all signals from all devices that can be put in. With advanced RFID blocking technology, you no longer need to worry about hackers and thieves scanning personal information. Can be used as an RFID shielding sleeve. Protect your money. And protect your privacy by blocking your phone's GPS tracking signal. Keep your car safe by blocking your car key signal.Specification:Name: Cell Phone Signal Blocking BagMaterial: 1860D + pearl cotton + environmental protection anti-theft brush shielding netProduct size: 8.3*4.7Packing: PO plastics bagProduct weight: 40gApplicable models: mobile phones with a maximum screen of 6 inchesApplicable to: smart phones, GPS positioning, driving recorders, mobile hard drives and other electronic productsPacking List: Cell Phone Signal Blocking Bag*1