Rewritable 13.56 MHz RFID Key Fobs 10 Pack, Black Product highlights Frequency: 13.56 MHz for standard contactless access control systems Sensing distance: 3 to 10 cm (1.2 to 4 inch) Size: 41 x 32 x 3.8 mm (1.61 x 1.26 x 0.15 inch) Material: temperature resistant ABS for enhanced durability Rewritable: supports more than 100,000 write and erase cycles Finish: black; includes key ring for easy attachment Package: 10 key fobs Key benefits and why you need them Durable and reliable: Tough ABS construction is water resistant and drop resistant, reducing the need for frequent replacements in daily carry conditions. Cost effective and flexible: Rewritable design lets you erase and reprogram tags repeatedly, simplifying management of temporary access and replacements. Compact and convenient: Slim size and included key ring make these fobs easy to carry on keys or backpacks while staying visible and accessible. Broad compatibility: Operates at 13.56 MHz, compatible with systems that support this frequency for standard contactless card and tag operations. Clear identification: Available in multiple colors for easy sorting and rolebased assignment when managing many users. Typical applications Office and commercial buildings: Issue to employees and contractors for secure door and elevator access, or to worn access cards. Residential and apartment complexes: Use for resident entry, parking gate control, or shared facility access. Attendance and facility access: Track staff or student attendance and control access to gyms, server rooms, or storage areas. How to use Program each fob using your compatible access control system following the system manufacturers procedures. Present the fob to the reader within the sensing distance (3 to 10 cm) for reliable detection. Use color coding to assign different access levels or user groups where multiple colors are available. Package contents 10 key fobs (black), each with attached key ring Performance and care notes Designed for repeated programming and everyday carry. Avoid prolonged exposure to extreme chemicals or mechanical abuse to preserve appearance and function.