Have not tested. Marked as in product description.
This is amazing for a small and cheap kit to produce 4 waveforms in sawtooth square triangle and sinus. Installation was easy until the dupont male connectors which required some special attention during soşdering due to the rigidity and the small distance between two legs. Take care about those soldered joints that are close to eachother and clean in between to prevent shorts. The constant frequency is the only pain with this generator however the adjustable 50K trimpot resistor near the line out connectors is capable of amplifying the signals to desired values for those claiming about low volume. For the price it’s definetely a great learning kit for amateurs.
Here is the final product with custom acrylic cover