Color: As shown in the picture Material: Plastic + Metal The long-distance 125khz module is equipped with brand- technology, featuring an advanced RF receiving circuit design and an industrial-grade embedded microcontroller, ensuring stable and reliable operation. The module is equipped with triple protection against system freeze, surge and wrong connection. It offers flexible interface selection and can be connected to various MCUS via UART or TTL. The baud rate supports adjustment from 9600 to 115200. From connection to usage, there is no threshold throughout the process. The medium-range EM module makes radio frequency identification applications more convenient and adaptable to various usage scenarios. Color: As Shown Material: Plastic+Metal Package Contents: 1*module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.