1. Ultra-Low Noise Figure, 0.4 Db At 1.95 GHz 2. High Linearity, +35 dBm Output IP3 3. High Gain At 1.95 GHz, 20 dB Gain 4. High Input Power Robustness, +22 dBm CW 5. Stable Performance; 50ohm Input/Output Power Supply:5V 70mA Frequency Range:100k-6GHz Connector:SMA Female This Product Is A High Linearity, Ultra-Low Noise Gain Block Amplifier. Different batches may have differences in product appearance, color, and printed characters, which will not affect the use Note: Battery-free version requires bias-tee power supply, some devices have Bias power supply function such as:for 1A,for ONE and so on. Colour:Gold-Yellow Material:Metal Size:45x45x18.5mm(not including connector) Package Contents: 1 * Low Noise Amplifier 1 * USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.