Features: This product supports 15 waveform outputs, such as sine Waves, square Waves, triangular Waves, forward sawtooth Waves, reverse sawtooth Waves, half Waves, full Waves, noise waveform, etc. Fully functional and easy to operate, it can be used in conjunction with oscilloscope for electronic circuit testing and debugging, frequency characteristics and pulse response testing and measurement of amplifiers. Easy to use, with save function, can save all setting parameters. The appearance is small, with a size of only 125x80x26.5mm, making it very easy to carry. Widely applicable, DDS have good accuracy and frequency stability, and is also very suitable for calibrating the scanning time factor of oscilloscopes. Specifications: Material:ABS Voltages:DC4-9V Current: 180MA at voltages 5V Frequency ranges: sine Waves 0.01Hz- 500.00kHz Resolution: 0.01Hz. Sine Waves distortions: <1% belows 1kHz, <0.5% above 1kHz Output impedance: 50ohms Type:Standard Version,With Antennas Package Includes: 1Set DDS Signal Generator note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.