Specification: Item Type: Signal Amplifier_x000D_Material: ABS_x000D_Color: As Picture Shown_x000D_Weight: Approx. 43.0g/1.5oz_x000D_Frequency: 45-862 MHz_x000D_Gain: 25db_x000D_Power Supply: 5V 1A (Self Equipped)_x000D_Noise Parent: Less than 4dB Features: 1With 25DB gain, you can get more channels, improve frequency clarity, and expand the receiving range. 2The number of channels received is determined by the broadcast content in your area. 3Channel reception is related to broadcasting tower, terrain, environment and weather. 4If your TV image is not clear, or you cannot receive weak signals from a distant transmission tower, use this amplifier to boost the weakened signal. 5Suitable for antennas without amplified appliances, if the signal is already very strong, you need not to use it. PackageList: 1 x Antenna 1 x IEC Adapter