Adjustable Frequency Wave Generator 0.01Hz-99999Hz, Multiple Waveforms, Touchscreen Audio Resonator with EU Plug This advanced wave generator offers a wide frequency range from 0.01Hz to 99999Hz with fine step adjustments down to 0.01Hz, providing precise control for various applications. It supports multiple waveform types including sine, square, and more, making it versatile for audio resonance and signal testing. The device features a full-color touchscreen that displays the active frequency band and allows easy switching between alpha, beta, and gamma waves with a simple tap. Operation is intuitive, with one-click access to any setting, suitable for both beginners and experienced users. Compact and durable, the generator is made of acrylic and comes with an EU plug compatible with AC 100-240V input, working in many countries such as Germany, France, Spain, Italy, and Indonesia. The output interface is a standard 3.5mm AUX headphone jack. Package includes 1 resonance generator and 1 adapter. Note: Product appearance may vary slightly due to lighting and display differences, but performance remains consistent.