4. Frequency range: sine wave 0.01Hz- 500.00kHz (with further increase in frequency, the output amplitude decrease), other waveforms 0.01Hz-100.00kHz (but does not limit the upper limit of the adjustable frequency, if the distortion and jitter requirements are not high, the use of frequency can be further increased). 3. Current: 180MA at voltage 5V 1. Output waveforms: sine wave, square wave, triangle wave, forward wave, reverse wave, ECG wave, exponential rise, exponential fall, Lorentz pulse, Gauss pulse, Sinc pulse, half-wave, -wave, wave, noise wave, and so on 15 kinds of waveforms. 2. Power supply: DC4-9V, DC5V is recommended when using adapter, 3.7V lithium battery is recommended when using battery power. 5. Resolution: 0.01Hz., Manufacturer: Akfldms