Features Premium performance: Due to the high accuracy and frequency stability of DDS, it is also very suitable for the oscilloscope's sweep time calibration coefficient. Output Wave: Square wave output is also suitable for oscilloscope attenuator and probe pulse adjustment. The main output waveforms are sine wave, square wave, triangle wave and sawtooth wave. Filter: There is a filter (which can be turned on/off) to suit the output of sine and pulse waves. Easy to Use: Small size, multi-function, simple operation and easy to carry. Excellent After-sales Service: We provide you with high-quality after-sales service. If you have any questions, please feel free to contact us, and we will deal with it for you as soon as possible. Specification: Condition: 100% Brand New 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, the magnitude may drop as frequency increases), other waveforms 1Hz-20kHz with good phase noise and small distortion, if you don’t care the phase noise and distortion, it can output full frequency range.  Resolution: 1Hz  Output Waveforms: Sine wave, square wave, triangular wave, forward sawtooth wave, reverse sawtooth wave. Sinewave 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 sinewave or pulse, can be turn on/off  Power Supply: DC3.5-10V. DC 5V adaptor or 3.7V Lithium battery is recommended. Weight: Approx.172g/6.1oz Package List: 1 x Function Generator 1 x USB Cable1 x Instruction Manual Note: 1. Please allow 1‑2cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List 1 x Function Generator 1 x USB Cable 1 x Instruction Manual