1. External battery can be added to increase the flight time of the Royal Air 2 (the increased duration is determined by the battery capacity and weight); 2. At the same time, it can be used as power supply and external electronic equipment; 3. Double XT60 plugs, can connect one or two batteries; 4. Soft and plastic FPC design, can be recycled, easy to disassemble; 5. Shipping list: - Power outconnector x1 - Adhesive x2