Material: ABS Packaging: 1pc Size: As shown in the picture Storage capacity: 13.56MHZ+125KHZ (bits) Reading and writing time: 102 (MS) Erase life: 1000000 (times) Carrier frequency: composite Application scope: access control attendance, building intercom, all-in-one card, etc Compact appearance, more convenient to carry. Highly secure, using advanced encryption algorithms to ensure user information security. Dual identity verification, with both IC and ID functions, can be applied to various authentication needs in various situations. No need for contact, close range sensing, more convenient to use. Note: This card is a blank card, not a universal card, and needs to be used in conjunction with the device. Due to manual measurement, please allow an error of 1-3mm. Please ensure that you do not mind before bidding. Due to the differences between different monitors, the images may not reflect the actual color of the item. Please refer to the actual image received. Thank you very much. _x000D_ _x000D_