Review on HECERE Ceramics Rewrite 13 56MHZ 20MM: Advanced 13 56MHz Ceramics for Enhanced Performance by Tom Beland

I bought this ring to use as a door access card for work. In my building I have to scan through 4 doors to get to my labs and then I have to scan both of my labs. I'm in and out all day and it's a lot easier to have something handy to scan (literally) so I'm not sifting through my wallet 20 times a day looking for a regular card. I used the same. the type of reader/writer shown in the pictures for this ring to copy my badge and write the code into the ring. It has completely changed my life, silly as it may sound, but when you have a bunch of parts that you need to carry from room to room, it's not always possible to search your wallet. In fact, I use it as an engagement ring, at least during the work week. (wife was fine). It appears to withstand regular and frequent hand washing and exposure to chemicals and powders, which tend to be quite common. If I needed it in the future I would definitely buy another one.