Features Multiple waveforms: This function generator can test many kinds of waveforms such as: sine, square, positive and negative sawtooth waveform. It is especially designed for those professional worker. Compatibility:It can be used with oscilloscope to test and debug electronic circuit,It also can calibrate the sweep time factor of oscilloscope. Function:The square waveform is suitable for oscilloscope attenuator and the adjustment of probe impulse response. Performance:Have a filter (can be turn on/off ) to suit the output of sine waveform and pulse waveform. Convenient: Small size, multiple functions, simple operation, easy to carry. Specification:Item Type: Function Generator Material: ABS Color: As shown in the picture Frequency Range: Sine  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 , square , triangular , forward sawtooth , reverse sawtooth . 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.3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List 1 x Function Generator 1 x USB Cable 1 x Instruction Manual