Indoor flight with a micro ultralightThe INUM is as easy as R/C gets. It's fully loaded with everything you need for exceptional indoor flights. This model delivers slow, smooth flights with good control authority. In a small gym, anyone can fly the INUM and feel like a pro. It's simple for novices to fly and still entertaining for advanced flyers. In one box you get a pre-assembled INUM Indoor Flyer RTF, rechargeable 3.7V 35mAh LiPo battery, interference-free 2.4GHz transmitter with built-in LiPo charger, and four "AA" batteries. All you need to do to fly the INUM is plug in the battery!Includes:o Pre-assembled Indoor Flyero 2.4GHz radio with built-in LiPo chargero 3.7V 35mAh LiPo batteryo Spare Propellero (4) "AA" batteriesSpecification:o Wingspan: 8.46 in (215 mm)o Length: 9 in (230 mm)o Weight: 0.3 oz (8.5 g)o Wing Area: 21.9 in2 (1.4 dm2)o Wing loading: 2 oz/ft2 (6.1 g/dm2)RTF-Requirements: Nothing required!