Among wireless camera remote controls, there are two kinds of technologies that are common. In order to establish communication between the transmitter and receiver, remotes either use an infrared signal, radio frequency connection, or Bluetooth. Generally, most people prefer an RF wireless remote over the more traditional infrared ones. This is because the trigger will not work if there is any object that is blocking the path to the camera. But most modern cameras have built-in Bluetooth receivers. Bluetooth remotes are easier to connect and offer better range than infrared remotes.