Key Features Full-range DSMX� receiver Antenna is amplified for greater signal clarity 4-Channel�throttle, elevator, aileron and rudder channels for park flyers, trainers and most sport planes Flight log and telemetry compatible 2048 resolutionVideo Overview OverviewThe full-range SpektrumTM AR400 receiver is easily one of the best receiver values in RC. It combines the speed and precision of DSMX� control with the signal security of an active amplified antenna. This antenna enables the AR400 receiver to "see around" reflective materials on a model and avoid antenna polarization blind spots. It also allows the AR400 receiver to pick out its transmitter's signal with remarkable clarity in the noisiest 2.4GHz environments. All of this is complemented by SmartSafeTM failsafe protection and the security of Spektrum QuickConnectTM technology that provides lightning-fast reconnection in the event of a low-voltage brownout. NOTE: The AR400 receiver is not compatible with the DX6 park flyer radio system. Always purchase products from a Horizon Hobby, Inc. authorized dealer to ensure authentic high-quality Spektrum product. Horizon Hobby, Inc. disclaims all support and warranty with regards, but not limited to, compatibility and performance of counterfeit products or products claiming compatibility with DSM2�, DSMX or Spektrum products. Attention: Horizon Hobby has confirmed that all Spektrum Products being sold by KoKo Technology are counterfeit. We consider it a danger to use these products, waive all liability and will not support any warranty or service in regards to them. This product is not intended for use by children under 14 years of age without direct adult supervision.