This product includes a resonance generator, an acrylic box with a small magnet, and a USB data cable. Note: The acrylic shell may have a slight adhesive odor, which will dissipate when placed in sunlight or a well-ventilated area for 2 to 3 days. It is recommended to remove the protective film before use.With an adjustable frequency range of 0.01 to 100,000 Hz, this sine wave generator allows customizable settings to improve efficiency and support various applications. The default frequency is 7.83 Hz, and it can be adjusted to other frequencies such as 174 Hz, 285 Hz, 396 Hz, 417 Hz, 528 Hz, 639 Hz, 741 Hz, 852 Hz, and 963 Hz.The audio frequency generator offers multiple waveform outputs, including sine wave, square wave, and reverse square wave, making it suitable for use in laboratories, studios, and other environments requiring signal generation.Designed for portability and convenience, the device is powered via USB and features a compact size. The frequency generator measures approximately 5.9 x 5.5 x 1.2 inches, and the acrylic enclosure measures approximately 6.2 x 5.8 x 1.5 inches, providing full coverage for the unit.Stable and reliable performance: The sine wave generator has a default output frequency of 7.83 Hz, with a sine wave voltage amplitude of 3V and a square wave voltage amplitude of 5V, ensuring consistent and accurate signal output.Wide range of applications: Suitable for electronic testing, equipment calibration, scientific experiments, and other scenarios requiring precise frequency control.Specifications: Frequency Range: 0.01 100,000 Hz Default Frequency: 7.83 Hz Power Supply: 5V Sine Wave Output: 3V amplitude Square Wave Output: 5V amplitude Color: As shown in images Dimensions: - Frequency Generator: 5.9 x 5.5 x 1.2 inches - Acrylic Enclosure: 6.2 x 5.8 x 1.5 inches Material: Metal + Plastic Package Contents: 1 x Adjustable Sine Wave Resonance Generator 1 x Acrylic Enclosure 1 x USB Data Cable Note: The package includes only the items listed above. Other accessories are not included. Due to lighting effects and monitor settings, the actual color of the item may vary slightly from images. Measurement tolerance: 13 cm.