Unlike traditional units, it requires electricity, but uses it to amplify television and FM radio stations. CCrane.com states that it "outperformed...by a huge margin" all the other indoor television antennas they have tested. There are two LEDs and a knob on the front of the unit.

This unit can be purchased at CCrane.com or on eBay. A similar version with a built-in LCD digital clock is also available. Other Cornet products include small portable televisions (like the Cornet TV-500 and TV-511), compact non-amplified indoor antennas (sometimes available on eBay) and outdoor television antennas.

CCrane.com Product Details
Sharp 27L-S100B Television
TV Antenna Buyer's Guide