Walkera G400 GPS Serles 6CH RC Helicopter BNF. GPS Hold System. One Key Go Home. Failsafe to Return Home & Landing. Stable Mode with GPS and Altitude Hold. Intelligent Flight Mode. Low Voltage Protection. G400 GPS technology newest apply in Helicopter. The new flight feeling for 3D helicopter:GPS attitude hold Mode to keep a safe hovering. G400 GPS attitude hold. After hovering, leave off the transmitter stick and the helicopter enter into GPS attitude hold mode. Buy this Toy and you can Get 11% OFF For Walkera G400 GPS Serles 6CH RC Helicopter BNF.