• SID (Spectrum IDenticiation)
   Skyion's latest FHSS 2.4Ghz Spectrum system. 
   

• Modulation Format:  
  - 2.4 GHz FHSS

• DX-Pro (Digital Spec Pro)
   

• Modulation Format:  
  - AM: 27MHz
  - FM: 27MHz / 40MHz /75Mhz

• DSX (Digital Spec Xtreme) * Discontinued
   
• Modulation Format:
  - AM: 27MHz

Stick style remote controller coming soon.