{"product_id":"10-pack-125khz-rfid-tk4100-waterproof-silicone-wristband-id-bracelets","title":"10-Pack 125KHz RFID TK4100 Waterproof Silicone Wristbands","description":"\n\u003ch2\u003e10-Pack 125KHz RFID TK4100 Waterproof Smart Silicone Wristbands\u003c\/h2\u003e\n\u003cp\u003eUpgrade your access control setup with these convenient, wearable RFID wristbands. This 10-piece set of 125KHz TK4100 silicone bracelets offers a hands-free, contactless identification solution — perfect for gyms, hotels, offices, events, schools, parking systems, and more. Simply tap the wristband near a compatible reader and gain instant access.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip:\u003c\/strong\u003e TK4100 ID Chip | 125KHz frequency\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 64-bit read-only data storage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDetection Distance:\u003c\/strong\u003e 3–5 cm (compatible with standard 125KHz proximity readers)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Soft, flexible silicone — comfortable for all-day wear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 235 × 17 × 6 mm — adjustable fit for most wrist sizes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Approximately 16g per wristband\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColors Available:\u003c\/strong\u003e Blue, Red, Yellow, Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWaterproof:\u003c\/strong\u003e Water-resistant silicone construction — safe for everyday use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Battery Required:\u003c\/strong\u003e Passive RFID technology — no external power source needed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 10 wristbands per pack\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cp\u003eThese RFID wristbands are designed to work seamlessly with a wide range of 125KHz access control systems, including:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDoor entry and access control systems\u003c\/li\u003e\n  \u003cli\u003eHotel room locks\u003c\/li\u003e\n  \u003cli\u003eStaff attendance and time-tracking systems\u003c\/li\u003e\n  \u003cli\u003eSchool and campus access management\u003c\/li\u003e\n  \u003cli\u003eParking lot entry and payment systems\u003c\/li\u003e\n  \u003cli\u003eTransportation and municipal payment solutions\u003c\/li\u003e\n  \u003cli\u003eSocial security and identification management\u003c\/li\u003e\n  \u003cli\u003eEvent and party wristband check-in\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose These RFID Wristbands?\u003c\/h3\u003e\n\u003cp\u003eUnlike traditional keycards or fobs, these wristbands are wearable — meaning users never have to dig through a bag or pocket. The soft silicone construction makes them lightweight and comfortable enough to wear all day, while the waterproof design ensures reliable performance even in wet or high-humidity environments. With 10 wristbands per pack, they're ideal for organizations, events, or property managers who need to equip a team or group quickly.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCustom Logo Available:\u003c\/strong\u003e Want your brand or event logo on the wristband? Contact us to discuss custom printing options!\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eFor more information on RFID technology and best practices for physical access control security, visit the \u003ca href=\"https:\/\/www.nist.gov\/topics\/cybersecurity\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNational Institute of Standards and Technology (NIST) – Cybersecurity Resources\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: Are these RFID wristbands compatible with my existing access control system?\u003c\/h4\u003e\n\u003cp\u003eA: These wristbands operate at 125KHz using the TK4100 chip, which is one of the most widely used RFID standards for access control, door entry, and attendance systems. They are compatible with the vast majority of 125KHz proximity readers. Please verify that your existing reader supports 125KHz TK4100 (EM4100-compatible) credentials before purchasing.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can the wristbands be reprogrammed or written to?\u003c\/h4\u003e\n\u003cp\u003eA: No — the TK4100 chip is a read-only chip, meaning the ID data is fixed at the factory and cannot be overwritten or reprogrammed. Each wristband has a unique, pre-programmed ID code that is read by compatible 125KHz access control readers.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Are these wristbands truly waterproof?\u003c\/h4\u003e\n\u003cp\u003eA: The wristbands feature a water-resistant silicone design that holds up well against splashes, rain, sweat, and similar everyday moisture exposure. They are suitable for use in damp or humid environments such as gyms, pools, or outdoor events, though they are not rated for deep-water submersion.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I order these with a custom logo?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! Custom logo printing on the silicone wristband is available. Please contact us directly with your artwork and quantity requirements to receive a custom quote.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Are these RFID wristbands compatible with my existing access control system?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These wristbands operate at 125KHz using the TK4100 chip, which is one of the most widely used RFID standards for access control, door entry, and attendance systems. They are compatible with the vast majority of 125KHz proximity readers. 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