All video senders are the same, right? Wrong! This video sender operates on the 5.8 GHz frequency and others operate on 2.4 GHz. Many household appliances like Wi-Fi, Cordless Phone, Microwave, etc., are also on 2.4 GHz so they will interfere with the standard video sender but with this one, due to its higher frequency you will experience interference-free viewing. And the long range of 400 feet and super high-gain aerial means crisp video and high-quality stereo signals for maximum entertainment.This product comes with one transmitter and one receiver. If you need additional receivers, you can purchase it using order code A87KH.