Features: Highly frequenncy head design: the Aeris Link head can effectively enhances the far-away signal and make the signal more stable. Double frequency support: supports 915M and 2.4G bands, stable signal output to meet different needs. HIGH POWER OUTPUT: 2W power output provides longer distance signal coverage. Strong Signal Enhancement: Effectively solves the problems of weak signal and disconnection to improve the communication quality. Lightweight and portable: compact design is easy to carry, use ianywhere without external power supply. Specifications: Model：Aeris Link Signal Enhancement Module Size:about -TX 72×63×35mm/2.83x2.48x1.38in（without antenna） ELRS 72x32x32mm/2.83x1.26x1.26in Type:TX 915M/TX 2.4G/ELRS 915M/ELRS 2.4G Package Includes: 1Set Aeris Link Signal Enhancement Module note: Due to problem of lighting effect and shooting, there might be tolerances in product, please understand. Please allow 0-1cm error due to the measurement.