Calminity Frequency Machine Adjustable Sine Wave Generator for Relaxation Sleep High Precision Features:Ultra-Wide Frequency Range: Capable of generating precise sine-wave signals from an ultra-low 0.1Hz up to 100,000Hz (100kHz), offering unparalleled versatility for electronics testing, laboratory research, and frequency calibration tasks.High-Precision Frequency Control: Features fine-tuned adjustment capabilities, allowing you to lock onto exact-frequencies with high stability. Ideal for resonance experiments, circuit debugging, and sound frequency analysis.Pure Sine-Wave Output: Delivers a clean, low-distortion sine waves signal, essential for sensitive equipment testing and ensuring accurate-results in resonance and audio frequency applications.Compact & Portable Design: Designed for convenience without sacrificing performance. The compact form factor makes it an ideal tool for field engineers, students, and hobbyists who need a reliable signal source in a small workspaces.User-Friendly Interface: Equipped with intuitive controls—such as digital displays or fine-adjustment dials—to make frequency selection quick, repeatable, and accu-rate.Notice:*Actual color may be slightly different from the image due to different light effect*Please allow 1-3cm deviation due to manual measurementDescription:Operating Voltage: DC 5V (DC 4-15V)Operating Current: 9-14mAPower Interface: Type-C (Supports Type-C to Type-C power supply)Default Frequency: 7.83HzAdjustable Range: 0.01Hz~100000Hz Pure Sine WavesSignal Voltage Amplitude: 3VFeatures a 3.5M audio output interfacePackage List:1 Set 0.1Hz to 100000Hz Adjustable Sine-Wave Resonance Generator