Protect your digital footprint both in your home and while traveling with the Privacy Tech Kit. (2) Webcam Covers: Covers your webcam from spying eyes. Works on phones or computers. Data Blocker Adapter: Safely charge your device on public USB ports. RFID Blocking Wallet Card: Stop thieves skimming your credit card information. USB-C Microphone Blocker: Prevent your phone or search engine from listening.