The Antop Antenna AT-221BVMARBLE is an indoor HDTV antenna with Smartpass technology and a reception range of up to 65 miles. It includes detachable VHF enhancement rods for multi-directional reception of VHF channels 2-13, and its modern panel design with a hair-line finish can be mounted on a wall or placed on a tabletop. This antenna supports HDTV, 1080P, and 4K Ultra HD broadcasts and is compatible with TV converter boxes and digital TVs.