The FlatWave Amped Razor Thin HDTV Indoor Antenna is the most advanced HDTV antenna available. Building off the high performance US patented dual band element design of the original FlatWave, our engineers have embedded a state of the art ultra low noise preamplifier with an amazingly low 1.0 db. typical noise figure, directly at the elements where 100% of the signal is amplified; resulting in never before seen range and performance from an indoor antenna. The FlatWave Amped also features a new USB power supply with LED power indicator. When plugged into a TV with a USB for power the amplifier turns on and off with the TV, saving you energy. No need to worry if you have an older TV set or converter box because a 110V adapter is included. Designed and Made in the USA by Winegard, the antenna experts.