The HITEC HFS-04MI 4 Channel Narrow Band Receiver operates on a frequency of 35Mhz, specifically designed for aeroplanes. This receiver is a reliable and efficient component for radio control enthusiasts looking to enhance their flying experience. With its electric power source and HITEC brand reputation, this product ensures a smooth and precise control system for aeroplanes. Whether for seasoned pilots or hobbyists, this receiver offers a quality and stable performance for a variety of flying conditions.