<p><strong><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Feature：</span></strong></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Read only. Not re-writable. Each key fob is already pre-programmed. You cannot re-program them by a card writer.</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Compatible with MIFARE Classic 1K Card (M1 Card). If your lock uses M1 card, these key fobs can work for your lock.</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Suitable for 13.56MHz RFID proximity access control system and ID management system. For example, register them to your RFID door lock as new keys if applicable.</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Frequency: 13.56MHz</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Chip: IC</span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Approx. Fob Size: 1.58*1.26*0.18 inch. </span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Casing Material: ABS Plastic. </span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Color: Blue. </span></p><p><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Package includes 100 PCS.</span></p><p><br/></p><p><strong><span style="font-size:18px;font-family:arial, helvetica, sans-serif">Note: </span></strong><span style="font-size:18px;font-family:arial, helvetica, sans-serif">These are 13.56MHz key fobs (tags), according to ISO14443A. If you want to register them to your lock system, please ensure that your system uses the same frequency 13.56MHz. Incompatible with other frequencies like 125kHz.</span></p><p><br/></p><p></p><p><kse:widget data-widget-type="customText" id="1005000002946929" type="custom"></kse:widget></p>