Features: Experience precise DDS signal generation with signal Generator, featuring a Schumann Resonator for enhances signal reception, making it a ideal tool for oscilloscope calibration and Audios testing. This portable multifunction waveform generator offers high frequency stability and supports various waveforms, ensuring accurate signal output for all your electronic measurement needs. For electronics engineers, researcher, and educators, this signal generator is perfect for laboratory testing, educational demonstrations, and radio enthusiasts seek to fine tune and study signal. Utilize this device in laboratory environment for circuit testing and signal analysis, in classrooms for physics and electronics demonstrations, or for optimizing radio equipment performances. With its user friendly interfaces, Signal Generator provide convenience and flexibility, making it a valuable addition to any toolkit for professional and hobbyists alike. Specifications: Material: Electronic Component Power: DC4-9V(Recommended DC5V when using adapter) Interfaces: 3.5mm Current: 180mA(DC5V) Frequency: 0.01Hz-500.00kHz Resolution: 0.01Hz Output Resistance: 50Ω Size: About. 14x2.6x8cm/5.51x1.02x3.15in Package Includes: 1 Set DDS Signal Generator note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.