西班牙采购需求：无人机、遥控无人机、四轴飞行器、遥控四轴飞行器、GPS 无人机、遥控船

We previously purchased one of your drones and were really excited, especially our daughter. Unfortunately, after two uses, we experienced significant issues when it flew away and ended up on a highway, resulting in its destruction. This raises concerns about its responsiveness and safety. Before we consider buying another unit, we need assurance that it will respond reliably to commands. Additionally, the instructions provided in the box were lacking clarity and had translation errors. We'd appreciate any suggestions or more detailed guidance to alleviate our concerns. Thank you for your attention to this matter.