RF/Coaxial Cable and 35 Mile Range Flat Indoor Multi-Directional Antenna Included.Before you buy please note:- Not to be used as a cable box. This Digital Converter Box will NOT work with ANY cable or satellite services or signals such as Time Warner/Spectrum, ATandT, Cox, Dish, etc.- Not a standalone recorder. It is designed to ONLY record programs that it receives from an HD antenna. External USB storage device required - not included.- Number of channels received depends on your location and the antenna being used.- IMPORTANT: Please do an online search for available channels in your area and what type of antenna you need to receive channels. The FCC DTV Reception Map is a good source.Other Features:Favorite ChannelParental ControlAuto Signal TuningAnalog Pass-through Channel 3/4Recording and Multimedia Function - USB Flash Drive Required - NOT INCLUDEDTROUBLESHOOTING:LED Light Turns Off: If it is the first time the box is turned on, the LED light will light up and then turn off after a few seconds. This is normal. It means that the box has not yet been set up. You should see "Installation Guide" on your TV screen. If not, switch your TV to the correct correct video input.No Channel Found/ Few Channels Found: Re-position your antenna and do a channel search. If that doesn't help, it could be your location. Air signals are tricky and sensitive. Results vary depending on how far your home is from a transmitting tower. In addition, hills, mountains, trees, bodies of water, buildings and walls can interfere with over the air signals. Some areas might have a hundred channels and some areas might have none. Keep in mind that this converter box is not a booster but simply a receiver.For further assistance please refer to the included flyer for our contact info or send us a message from your account.