A cell phone booster is a device designed to enhance mobile phone signal strength. It works by capturing weak signals from nearby cell towers, amplifying them, and then redistributing the improved signal within a specific area. This can help users experience better call quality and faster data speeds, especially in locations with poor reception. These boosters are particularly useful in rural areas or buildings with thick walls that block signals. They typically consist of three main components: an external antenna, an amplifier, and an internal antenna. By improving connectivity, cell phone boosters can significantly enhance the overall mobile experience.