Key features6 channels internal and remote receiver patented dual ink technology model match technology prevents flying a SPMAR6210 using the wrong SPMAR6210 memory (feature does not work with module systems) servo sync technology (feature does not work with module systems) smart safe failsafe system us patent 7,391,320 flight log compatible works with Tm1000 & Tm1100 telemetry units 1-year limited warranty overview The ar6210 DSMX 6-channel receiver is a great solution for all SPMAR6210 aircraft requiring full range up to six channels. This dual ink receiver simultaneously gathers information from two receivers that is processed by patent pending Spektrum software that combines it to form the most vivid picture of an rv signal. This dual path-redundancy, plus the fact each of the two receivers is located in a slightly different location, exposes each to a different rv environment and creates a bulletproof rv Link in all conditions. Note: the ar6210 receiver is not compatible with the original Dx6 park Flyer radio system. The ar6210 receiver is compatible with all Radios that support Dsm2/DSMX technology. 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. 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.