The HDBOOST HDMI signal booster is a signal amplifier, which allows you to increase the signal strength of your HDMI video source by connecting an HDMI display up to 115' long with standard HDMI cables. You can also place the booster inline between two HDMI cables, up to 82' long at the video input and up to 33' long at the video output. It is easy to hide or a non-intrusive installation and doesn't require external adapter to operate the signal booster. It features an equalization button with 10 levels that allows you to adjust the amplification of HDMI signal based on the distance of cables. It is suitable for boardrooms, offices or classrooms. HDMI signal booster extends HDMI up to 150' at 1080p full HD and up to 115' at 4K x 2K ultra HD resolution, using standard copper HDMI cables. Dimensions: 1"H x 1.7"W x 2.1"L. Audio specifications: 7.1 surround sound. Max distance: 115', maximum cable length: 114.8'. Maximum digital resolutions: 1920 x 1080 at 60 Hz. Supported resolutions: 1920 x 1080, 1680 x 1050, 1600 x 900, 1440 x 900, 1360 x 768, 1280 x 800, 1280 x 768, 1280 x 720. Connectors: Connector A: 1 x HDMI (19 pin) female input. Connector B: 1 x HDMI (19 pin) female output. LED indicators: 1 x power LED (blue), 1 x video source LED (blue). Power: Center tip polarity: Positive, input voltage: 100- 240 AC, output current: 1 A, output voltage: 5 DC, plug type: N. Operating temperature: 0 to 70 deg C, storage temperature:-10 to 80 deg C, humidity: 5% to 90%. Includes 1 x HDMI signal booster, 2 x mounting brackets, 4 x mounting screws, 1 x screwdriver. Supports wide screen. Weight: 2.5 oz. Comes with 2 year warranty.