Power supply interface: Type-C Power supply voltage: DC 4.5V-5.5V Standby current: Less than 25mA. Emission current: Less than 150mA. Output impedance: 50 ohms Output frequency range: 35MHz-4400MHz. Output step: 1KHz-8KHz. Output: SMA standard interface inner hole. Output power:- 1dBm (W) @ 150MHz (absolute value of test power) approximately 1 mW Size: 80mm x 75mm x 30mm (excluding interface) The operating keyboard of this product has 15 ppt keys, 0-9 numeric keys, 10 "++" and "-" keys to adjust the frequency of use, and also generates emission output behavior. Short pressing the "++" or "-" keys will add 1kHz or negative 1kHz to the original frequency output. Pressing the "++" or "-" keys for more than 1 second will result in continuous or continuous subtraction scanning mode. 1kHz when stepping from 35kHz to 138MHz; 138MHz is 138kHz. The steps are 10kHz at~550MHz and 100kHz at 550MHz~4000MHz. To end the scan, simply press the "++", "-", or "OK" buttons. The 'OK' button is the output control button. Press again to stop the transmission. The emission behavior caused by "++" or "-" requires pressing "OK" twice to end the transmission, and the product will display "》" in the upper right corner. When the output emission behavior occurs, the "C" key will terminate the transmission with a frequency of zero. Step "()" key, used for continuous addition and subtraction scanning mode for easy adjustment, cyclically selecting steps "1K", "10K", "100K", "1M". By pressing the "()" button, the underlying LCD1602 defaults to the "(1k)" step indication when powered on. Four types of step states can be executed in a loop. Color: Green Material: ABS Package Contents: 1 * RF signal generator 1 * charging cable 1 * antenna