The Antennas Direct DAX4 amplifier boosts the TV signal from your indoor or outdoor TV antenna or CATV system and distributes that signal to as many as 4 TVs. Distributing signal to multiple TVs and using 50 ft. or more of coaxial cable will result in a certain amount of signal loss. The 4-output distribution amplifier helps overcome these signal challenges by strengthening the signal coming in from the TV antenna’s coaxial cable for clear, consistent picture quality and reception. Designed for both home and professional use, our DAX4 is designed to be used in homes and businesses in urban, suburban, and rural areas. Precision machine-sealed zinc diecast housing protects against dust and water droplets and provides shielding from electrostatic discharge, with excellent surge protection on all ports. Recommended for indoor use but can be used outdoors with 75 Ohm F-termination caps and coaxial cables that have watertight F-connectors and weather boots. If installing outdoors, you will need a power inserter (not included) to allow the included power adapter to share the coaxial cable connected to the designated output shown on the Distribution Amplifier. Details: Dimensions: 3.5" H x 4.4" W x 1" D; Weight: 8.8 oz.; Compatibility: Indoor / outdoor (with termination caps) HDTV, analog, digital antenna installations, legacy CATV systems; Frequency Range: 54-1000 MHz; Low Noise Figure: <3 dB; Gain: 8 dB per port; Color: Silver; Includes: 12V DC Power Adapter, 40" High-performance coaxial cable, 2 x Wall screws, 1 x Grounding Screw, Installation instructions. 90-day accessory warranty. Based in St. Louis, MO., Antennas Direct is dedicated to providing superior digital antennas and accessories engineered in the USA. As the pioneers who reinvented the digital TV antenna industry, Antennas Direct have helped millions of people cut the cord since 2003 and believe that high-quality TV antennas can and should deliver performance and reliable reception of your free broadcast TV signals at an affordable price.