This Flyline flight system features a unique anchoring and tethering mechanism. The planes are tethered with a line to the center pole and anchored by a water-filled base. The planes take off fly and land in a circular pattern around the pole. The battling racing and aerobatic flying area is therefore the hemisphere around the center pole. FlyLine pilots control their planes with their transmitters and with the amazing FlyLine Magic Rings. Multiple players can fly in the same space and their planes NEVER TANGLE while flying! Don t be fooled by the circular flying pattern! All FlyLine models feature a digital proportion radio control system and a digital servo to control the plane s speed and rear elevators for smooth and real-time command. Therefore FlyLine models are capable of climbing diving looping knife-edge flight and much more at supersonic scale speeds. In addition all FlyLine transmitters operate on a 2.4 GHz radio frequency so you can use gravity-defying stunts and maneuvers to race and combat with other players at the same time and in the same air space indoors or outdoors with no interference! Flyline Complete R/C flight system Spitfire air racer airplane Interference free 2.4 GHz remote control plane Solo flight or multi-player racing Fly at super sonic scale speeds For indoor or outdoor racing Easy to learn challenging to master Unique anchoring system Real take offs and landings Perform loops and double loops Contents: 1 Air Combat Spitfire plane 2 combat propellers 2 Li-Po rechargeable & replaceable batteries 1 - 2.4 GHz control transmitter 3 tether filaments in 4 foot 6 foot and 9 foot lengths 2 rolls of streamers 1 Complete patented anchoring base system FlyLine Flight Manual Decal stickers Recommended for ages 8 and up Requires 4 AA batteries (2 Lipo batteries included) Brand is Flyline