ITEM NAME:DIY Kits 1Hz-1MHz XR2206 Function Signal Generator Sine Triangle Square FVQ.Frequency: 1Hz - 1MHz. Flatness: + 0.05dB 1Hz - 100KHz. It can produce sine wave, triangle wave, square wave;. Waveform: Square, sine and triangle. Material: Generator. 1 Function Generator DIY Kit.