There are various specifications, shapes, and forms of products available, and Century offers multiple options in acoustic magnetic (AM) and wireless radio frequency (RF) technology to covertly protect products that are difficult to label. AM tags have a small volume, high detection rate, and are not affected by metal or aluminum foil shielding, making them suitable for protecting products such as shampoo and beauty. RF tags offer a better detection range due to the higher Q factor and enhanced effective signal volume through the optimized circuit design, making them suitable for protecting high-end meat, dairy products, and other products.