Key features

• •Quantity: 10 pieces Black T5577 Keyfobs and 10 pieces Blue T5577 Keyfobs，size：40mm x 30mm x 4mm. Our T5577 keyfob is made from a combination of high-quality ABS and metal materials that are not only strong and durable, but also sophisticated in appearance. The ABS shell is well protected against daily wear and tear, is waterproof and heat-resistant, and its small, lightweight design makes it easy to hang from a keychain for on-the-go portability without adding unnecessary bulk.
• •Chip：Operating at a frequency of 125kHz, this key fob is equipped with the original T5577 chip, renowned as one of the best rewritable chips in the market. The reading distance ranges from 2.5-10cm, ensuring reliable and quick communication with compatible RFID readers.
• •Application: Our T5577 key fob supports both read and write modes，making it highly adaptable.It can be seamlessly used with 125kHz RFID card copiers or duplicators，allowing you to easily transfer or rewrite data as needed.Whether you're using it for access control systems or other applications，its flexibility in data management is a huge advantage.
• •Note: In the process of daily use, The key fob can not be directly added to the RFID lock, please use 125kHz RFID writer to write data into the chip before use. They are original blank chips with no data inside.
• •Hassle Free Warranty: We are confident that you'll love our T5577 key fob. If, for any reason, you're not satisfied with the key cards, please do not hesitate to contact us and we will try our best to make things right.