Features: Compact size with complete functions and simple operation Easy to carry, powered by either a power adapter or a 3.7V lithium battery Ideal for electronic circuit tests and debugging, frequency characteristics, impulse response tests, and audio amplifier measurements Excellent accuracy and frequency stability, suitable for oscilloscope sweep time calibration Square wave output for oscilloscope attenuator and probe pulse characteristic adjustment Includes a filter for sine and pulse wave outputs Supports multiple waveforms: sine, square, triangle, forward and reverse sawtooth, and more Designed for professional users Specifications: Type: Available with or without Antenna Material: ABS Main Technical Parameters: Output Waveforms: 15 types including sine, square, triangle, sawtooth, ECG, and more Power Supply: DC4-9V (recommend DC5V with adapter or 3.7V lithium battery) Current: 180mA at 5V Frequency Range: Sine wave 0.01Hz-500.00kHz; Other waveforms 0.01Hz-100.00kHz Resolution: 0.01Hz Output Amplitude: Max ±10V (P-P) Output Impedance: 50 ohms DC Offset: Max ±10V with shutdown function All setup parameters are savable Switchable filters for sinusoidal and pulse waveforms Item Size: 140 x 80 x 26 mm / 5.51 x 3.15 x 1.02 in Item Weight: 144g / 5.07 oz Package Size: 15.5 x 15.5 x 5 cm / 6.10 x 6.10 x 1.97 in Package Weight: 325g / 11.46 oz Package Included: Type A: 1 x Signal Generator 1 x USB Power Cable 1 x BNC Clip Cable 1 x Double-Ended BNC Cable 1 x Antenna 1 x User Manual (English) Type B: 1 x Signal Generator 1 x USB Power Cable 1 x BNC Clip Cable 1 x Double-Ended BNC Cable 1 x User Manual (English)