Welcome to the store! Ultra-low noise, 0.4 dB at 1.95 GHz High gain at 1.95 GHz, 20 dB gain High linearity, +35 dBm output IP3 High input power robustness, +22 dBm CW Stable performance Purchase Tips: The battery-free version requires a Bias-Tee bias power supply. Some devices have their own bias power supply function. This product is a high-linearity, ultra-low noise gain block amplifier! Type: Gain Amplifier Power Supply: 5V 70mA Frequency Range: 100K-6GHz 50 ohm input/output Connector: SMA female Weight: 46g Power Supply: B: 3.7V 300mAH battery (battery not included) Color: As shown Material: Metal Size: 45x45x18.5mm (excluding connectors) Package Contents: 1 * Gain Amplifier 1 * Cable (Only the above package content is included; other products are not.) Note: Light reflections and different displays may cause the color of the item in the picture to differ slightly from the real item. The allowed measurement error is +/- 1-3 cm. Your satisfaction is our top priority. We are committed to providing you with the best service. If you encounter any issues after receiving the product, such as damage or incorrect quantity, please contact us immediately for the best solution!