The antenna is amazing. Period. Before using the antenna I used a older antenna provided by Time Warner Cable which only got us close to only 20 channels. When we installed this indoors we got over 150 channels which is immensely more that what we had expected from other reviews. I can only imagine how many channels we can get if we put it on the glass window. The actual antenna is a floppy plastic piece connected to a wire that is then connected to an amplifier or your tv directly. BE WARNED. If you walk past the antenna you may see some grainy footage in the next few seconds which lasts for a max 3 seconds. It's a small kink but it is fine for most consumers.