Buyers must first determine the Frequency Band: LF (125-134 kHz) for short-range access control, HF/NFC (13.56 MHz) for payments and data exchange, or UHF (860-960 MHz) for long-range logistics and inventory. Additionally, specify the Chip Type (e.g., NTAG, ICODE, or Impinj Monza) to ensure compatibility with your existing readers. The Read Range is also vital; ensure the tag's antenna design matches your operational environment, especially if used near metal or liquids, which require specialized Anti-Metal layers.