VATOS RC Helicopter, Remote Control Helicopter for Kids Altitude Hold Hobby RC Airplane with Batteries Gyro & LED Light 3.5 Channel Micro Alloy Mini Military Series Indoor Toy Gift for Boys Adults 【One Key Take-Off/Landing】This RC Helicopter is equipped with the latest Gyroscope technology. No Assembly required. You can play it easily with 1-Key Take-Off/Landing and trim control to correct drifting and tilting. 【Altitude Hold & Non-jamming Function】The RC airplane has altitude hold function. With the advanced barometric pressure technology, it could hover at a certain altitude automatically after taking off. Equipped with a 2.4GHz remote control system, it can offer a stable signal and it has a non-jamming function to prevent signal interference when multiple helicopters flying together.