Welcome to our store! 1. Due to DDS's high precision and stable frequency, it is also very suitable for the oscilloscope's sweep time calibration factor. 2. The square wave output is also suitable for oscilloscope attenuators and probe pulse adjustment. 3. The main waveforms are sine wave and square wave, triangular wave, sawtooth wave. 4. Has a filter (can be turned on/off) to suit the output of sine wave and pulse wave. 5. Small size, multiple functions, simple operation, easy to carry. 6. Made of high-quality material, durable and practical to use. Item Type: Function Generator Material: ABS Color: As shown in the picture Frequency Range: Sine wave 1Hz~500kHz (Magnitude is flat up to 200kHz, above 200kHz, magnitude may drop as frequency increases), other waveforms 1Hz-20kHz with good phase noise and small distortion. If you don't mind phase noise and distortion, it can output the full frequency range. Resolution: 1Hz Output Waveforms: Sine wave, square wave, triangular wave, forward sawtooth wave, reverse sawtooth wave. Sine Wave Distortion: 1% (frequency <1kHz); 0.5% (frequency >=1kHz) Output Amplitude: Maximum ±10V(P-P). Output Impedance: 50 ohm DC Offset: Maximum ±10V, can be disabled Internal Filter: For sine wave or pulse, can be turned on/off Power Supply: DC3.5-10V. DC 5V adapter or 3.7V lithium battery is recommended. Weight: Approx. 172g / 6.1oz 1 x Function Generator 1 x USB Cable 1 x User Manual