Review on 🔒 Enhanced Security: KeySmart Magnetic Keychain Ensures Reliable Attachment by Brian Faxon

Overall I like this product. I haven't used it long enough to comment on its durability, which is an issue other reviewers have mentioned. I haven't had any problems with a weak magnet and falling buttons. I've read about problems where the magnet falls out of the base. I have super glue just in case. My goal was to have a male side on my master key and be able to switch between car and motorcycle keys, but attach their female side to my key. It works and works well so far. The problem is that they don't have a set polarity for the male and female ends of the key holder. So to achieve my goal I had to buy three of these to ensure correct polarity between at least two of them. This is the result I got. Two of them have matching polarity, so the male and female ends can be mixed and matched. The third is of opposite polarity and cannot be used with the other two. So if you want to do what I did but with more than 2 keys and/or multiple key fobs, you'll need to do the math to find the best number to buy to get the highest probability of a polarity match. This can and should definitely be taken into account when developing a product.