In today’s electronic market, there are two primary types of remote control systems available to consumers, IR-based systems and RF-based systems. IR stands for Infrared and means the remote must be pointed directly at the receiver. RF stands for Radio Frequency and means the remote is multi-directional. RF remote controls work within a 10-meter radius. BT stands for Bluetooth. BT is a wireless technology standard that uses short-wavelength UHF radio waves (2.4 GHz to 2.485 GHz) to transmit and receive data over short distances