This is the GYRO-X indoor radio-controlled helicopter made by PROPEL. It has a built-in gyro sensor for high stability, making it easy to operate even for beginners. ・3.5-channel specification ・Ascend/descend, turn left/right, forward/backward, hovering possible ・Dual rotor structure like a real aircraft ・The main unit can be charged from the controller ・Indoor-only model Price negotiations possible. Immediate purchase is okay. I used it a few times a long time ago and then stored it in the box. Therefore, the transparent box part has slightly yellowed. Operation confirmed. Works normally. Charging was also successful. Flight was also successful, with ascent/descent, left/right turns, forward/backward movement, and hovering all working normally. I didn't feel any delay. The propellers are also in good condition. The tip of the center spring in the controller's battery compartment has slightly changed color, but it works fine. The helicopter body and controller are included. Recommended for collectors, children's practice, or as an introduction to radio-controlled models. ・Please understand that this is a used item before purchasing.