Features: Enhances CC1101 expansion board, enhancing your Sub-GHz wireless projects with superior signal strength. The expansion board comes equipped with external high gained module and a 433MHz rubber duck that can be easily replaced to suit your specific needs. For enthusiasts and professional in the field of wireless communication, to boost for highly performances. This expansion board ensures reliable and extended connection. This expansion board not only promises long use but also seamlessly integration for investment for any developers toolkit. Specifications: For CC1101 Expansion Boards Delivered with 433Mhz Type: High gained CC1101 Package Includes: 1PC CC1101 Expansion Board note: Due to the problem of lighting effect, there will be tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurement.