The Hopper Built AM RF Power Amplifier is a compact and efficient amplifier designed for AM radio communication. With a power output of 12V and a fan for cooling, this amplifier is perfect for boosting the signal strength of your radio. The blue and black color scheme adds a touch of style to this versatile device, which is compatible with various radio models and antennas. With a single coaxial RF input and output, this amplifier is easy to set up and use for improved signal quality in your ham or amateur radio communication system.