The DigiTenna Indoor model utilizes DUV technology to pull high definition television signals from the UHF band as well as the VHF high band. While other antennas require additional hardware to receive VHF signals, the DUV-I is specifically designed to receive both UHF and VHF high band signals without attached reflectors or additional elements. What you see is what you get. Installation is quick and easy without the need for additional cords or nearby AC outlets. Because of its efficient design, there is no internal amplifier to distort or overdrive the signal. If you're living within 15 miles of a transmitter, a compact 6.75" L x 22" W x 5.5" H DUV-I is all you'll need to start receiving the new digital television channels.