Output waveforms: sine wave, square wave, triangle wave, forward sawtooth wave, reverse sawtooth 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. Power supply: DC4-9V. DC5V is recommended when using adapter, 3.7V lithium battery is recommended when using battery power. Current: 180 mA at 5V 4.I.The main technical parameters: Applications and benefits - Wide waveform library enables versatile signal generation for testing, measurement, and demonstration. - Supports adapter or battery operation for flexible bench and field use. - Clear and precise waveform outputs suitable for electronics education, microcontroller projects, audio testing, and sensor signal simulation. 2-3 practical use scenarios - Educational lab: demonstrate fundamentals of different waveforms and their effects in circuits. - Microcontroller/DSP development: generate test signals to verify PWM/DAC, filtering, and data acquisition. - Signal testing and research: simulate ECG, Gaussian, Sinc, and other pulses to evaluate analyzers, amplifiers, and processing algorithms.