The Armada Technologies PRO220A Advanced CATV Tone and Probe kit is designed to find and identify wires and their terminating point. The PRO220A Advanced AC Filtered CATV Tone and Probe ID Kit incorporates features specifically for the cable TV industry. First, the tone generator uses both male and female F connectors for easy interface with CATV cabling. Second, both the Pro110A Tone Generator and Pro210F AC Filter Probe utilize AA batteries, which are commonly available at any CATV facility and provide 250+ hours of operation. Third, the Pro210F probe is highly advanced, with AC filtering technology to reduce interior AC noise interference and buzz. In addition, the Pro210F has a high powered LED headlight for dark areas. And standby features like headset jack, low battery light, and volume control are all included.