The Winegard LNA-200 Boost XT HDTV Preamplifier TV Antenna Amplifier Signal Booster is a high-quality antenna amplifier designed to boost signal strength for a clearer and more reliable television viewing experience. With a signal gain of 18dB, this preamplifier is compatible with various antennas and is manufactured by Winegard Company, a trusted brand in the industry. The sleek black design and easy installation make it a practical and effective accessory for improving your TV signal reception.