Syma S107 Helicopter 3 Combo SEt - Red, Yellow and Blue Bundle + Extra! 3 Units S107G in Red, Yellow and Blue - Transmitter, Helicopter Extra includes: 20 AA Batteries (each helicopter needs 6 AA batteries) 3 X Main Blades (one Red, one Yellow, one Blue), 3 X Balance Bar, 3 X Tail Blades Values of all the extra is $35-$40 if purchased separately. Complete Ready to Fly with AA batteries for remote, and common extra spare parts. Please note: Only 2 can fly at the same time.