Pigflytech Ultra-Thin Amplified Indoor HDTV Antenna-50 Mile Range for Digital HDTV with USB Power Supply- Builtin Amplifier Signal Booster for UHF VHF and 16.5 Feet(5m) Coaxial Cable FREE access to over-the-air digital TV broadcast channels. Support receiving both VHF(170-240 MHz)and UHF(470-860 MHz)channnels which enable you to receive High Definition TV signals from all stations and comes with a 16.5 foot coaxial cable. Builtin amplifier kit, Within 50-Mile range to access free HD channels (e.g. ABC, CBS, NBC, PBS, and Fox.) from broadcast tower; plus additional programs the satellite and cable don't offer. The channels availability significantly base on the local terrain (including buildings, hills, trees, and mountains) and your home surroundings. The fewer obstructions, the better for receiving digital signal,or more number of channels. Works with any HDTV or devices that have built-in ATSC tuner include HDTVs, laptops, PCs. You need only go through your TV manual to make sure that your devices'menu has an option for scanning digital channels. It is ultra thin and lightweight design and can be hung or laid flat in your house. Easily connected and powered by USB cable or DTV set-top box via coaxial cable, which enable to strengthen the signals,with maximum range reaches up to 50 miles (80km). Super Thin design along with a 16.5 feet coaxial cable allows you to place it almost anywhere ( Table, Window, Wall ). If you receive only a few channels or the reception is poor, please try to move the antenna, then re-run the channel scan, Placing the antenna higher or closer to a window will improve the reception of the broadcast signals.