Specification Brand : YARONGTECH BulletPoint : UID Keyfob BulletPoint1 : 125khz EM4100 Chip,Read Only,can't rewritable,If you need rewritable Keyfob,please contact with us BulletPoint2 : all the chip has pre-programmed with Unique ID Number,but UID can't change,UID is pre-printed on the keyfob BulletPoint3 : it's normal ID 125KHZ Keyfob,not HID Keyfob,so it can't work with HID reader BulletPoint4 : 100% New York based Company. BulletPoint5 : Real-Time Analytics: Monitor interactions and review activity to gain valuable insights into customer engagement. BulletPoint6 : 24/7 Customer Support: Our team is available around the clock to assist with setup or any questions. BulletPoint7 : Get More Reviews for Your Business: Use NFC and QR technology to make it easy for customers to leave reviews, helping you strengthen your online presence and reputation BulletPoint8 : SEO Advantage: More Google reviews improve your SEO, increasing visibility and attracting more customers. BulletPoint9 : Great for Many Businesses: Perfect for restaurants, cafés, mobile contractors, home service providers, medical practices, salons, gyms, retail stores, and more. Color : Green ControlMethod : touch ExternallyAssignedProductIdentifier1 : 0198715811735 ExternallyAssignedProductIdentifier2 : 198715811735 IncludedComponents : 100 Pcs RFID Key Card ItemName : 125KHZ RFID Tag Metal Style Black Keyfob for Door Access Control System (100) ItemPackageDimensions_Height : 9.7 centimeters ItemPackageDimensions_Length : 1 centimeters ItemPackageDimensions_Width : 5.7 centimeters ItemPackageQuantity : 100 ItemTypeKeyword : commercial-access-smart-cards Manufacturer : YARONGTECH ModelNumber : uidk-5 NoiseLevel : 125 decibels NumberOfBoxes : 1 NumberOfItems : 100 PartNumber : C4015 PowerSourceType : Battery Powered ProductDescription : 1.EM4100 Chip. 2.read only. 3.black color. 4.125khz RFID Tag ,NOT HID Mode 5.Can't rewritable. ProductSiteLaunchDate : 2021-02-04T09:21:13.067Z Size : 5 CARDS SkipOffer : 1 SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 40150000