Click here for user manualOVERVIEW When you are investing in a new radio and considering what requirements are important to you if weight and comfort are primary considerations followed by the benefit of the excellent system features of ETHOS then the FrSky Tandem X18 radio is an obvious appropriate choice The Tandem X18 dual band telemetry radio benefits from an enhanced ergonomic design with rounded and more comfortable hand grips along with an improved case design to make the radio fully stable when standing The radio includes easy to reach sliders and switches 4 standard stick trims with additional 2 extra trims added to provide more flexibility with flight attitude adjustments while operating the radio The X18 includes further enhancements with integrated flash storage which improves and simplifies storage operation and use and the interior of the radio has been designed with space and weight in mind while still keeping all ETHOS setting and control features for the pilot to enjoy Internal 900MHz 2 4GHz Dual BandExternal Module BayThe TD dual band RF system combines both the features and advantages of FrSky 900MHz and 2 4GHz RF together in one system The TD features real simultaneous dual band longrange control with telemetry that achieves reliable end to end 4ms latency while maintaining a robust and high quality signal link The entire range of TD ACCESSACCST D16 receivers are supported The built in TANDEM RF System supports ACCESS and ACCST D16 protoco