This is a radio  controlled, 100mm EDF powered, Almost-Ready-to-Fly, 51'' Electric Ducted Fan RC Jet Airplane. It  is new-in-box.

SPECIFICATIONS:

  Wing span: 51 in / 1300 mm
  Wing Area: 390 sq in / 25.2 sq dm
  Flying weight: 6.6lbs / 3000g
  Fuselage length:49.2 in / 1250 mm
  
  Requirements:
  EDF : 101mm / 4.0 in x 1pcs
  Radio Required: 4channels, 5servos
  Brushless Motor : D36 x L 50 mm x 1pcs ; 1900kv - 2200 kv
  Speed Controller : 22.2 v ; 85A ; 25C ;
  Li-poly Battery : 4000mAh ; 25 C .