Ikhadi le-RFID elivikelayo lisebenzisa ibhodi lesekhethi yesignali enobuchwepheshe bokuvikela ukuvikela amasignali e-RFID. Sifaka ikhadi le-high-frequency shielding card esikhwameni noma ngaphakathi kuka-3cm wendawo lapho sifuna ukuvikela isignali yekhadi elithile ukuze sifinyelele umphumela wokuvikela isignali, kungakhathaliseki ukuthi izigebengu zisebenzisa yiphi idivayisi, azikwazi ukweba ikhadi lakho. ulwazi lokuqinisekisa ukuphatheka okuphephile nokuvimbela ukuvuza kolwazi. Ikhadi elivikela imvamisa ephezulu linganikezwa namalambu e-LED namabili angenawo amalambu e-LED, njengama-LED: uma izigebengu ziletha imishini ekhethekile yokweba eduze kwakho, i-LED yekhadi le-anti-theft izokhanya ukuze isebenze njengesikhumbuzo.