Features: The CUID elastomer wristband features flexible account modification, allowing users to personalize their account for various applications such as access control and event management, ensuring convenience and adaptability. Constructed from additional impermeable elastomer, this wristband is permanent and resistant to water, making it exemplary for swimming, outdoor tasks, and daily use lacking risk of damage. Direct current a wide extent of contactless devices including Robot phones with contactless MCT apps and acr122U, this wristband simplifies CUID card writing for technology enthusiasts and specialists. K series basic passcode security, this wristband proposals strengthened security for circumstances requiring controlled access, such as corporate financial management otherwise individual privacy security. Developed as a intelligent wearable device, this wristband combines powerful functionality with comfortable wear, making it perfect for modern users in intelligent house otherwise office conditions. Specifications: Chip Model: CUID component: Silicone Operating Temperature: 30°C-220°C Features: Waterproof, moisture-proof, and shockproof Color: Red/Yellow/Blue/Black（Optional） Type: 1Pc/5Pcs（Optional） Applications: Access control, elevators, time and attendance systems, campus cards, membership cards, parking lots, hotels, including. Package Includes: 1Pc/5Pcs CUID microprocessor wristbands note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.