Features: for Flipper CC1101 module subGhz module 433MHz external SubGhz module Increasing the transmission and reception rangeon 433Mhz allows for self replacement of highgain antenna. The yellow PCBhas been upgraded to green. Suitable for various devices and scenarios. Suitable for electronics enthusiasts, engineers, creatorsand those interested in wireless communication technology. It can be widely used in fields suchIoT devices, smarthomes, remote control, and wireless sensor Specifications: Item：for Flipper CC1101 module subGhz module Frequency: 433MHz Material ：Plastic Size：approx 6.7x3.6cm/2.64x1.42in Package Includes: 1PC Flipper CC1101 Module note: Due to the problems of lighting effects and shootingangles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment