Features: Premium gold plate Schumann waves Generator with adjustable frequency delivers precise resonances tuning for enhances electromagnetic field optimization in plugs and play operation. Crafted from durability ABS material, this frequency adjustable device maintains ≤1% output deviation while automatically modulating speaker volumes base on 0.1HZ~99999HZ ranges. Ideal for researcher, audios enthusiasts, and wellness seekers requiring customizable frequency outputs for experiments, sound therapy, or environmental harmonization. Enhances workspaces efficiency in lab, home offices, or studios by generating targeted frequencies to support focusing, relaxation, or equipment calibration. Experience precise Schumann waves generation with our plugs and play adjustable frequency generator, delivering reliable performances with ≤1% output deviation for seamlessly integration into your setups. Specifications: Component:ABS Size:Approx.7.73x10.78cm/3.04x4.24inch Working voltages: 5V Defaults Frequency:7.83hz Adjustment Ranges: 0.1HZ~99999HZ power consumption: <0.5W Equipped with 3.5mm Music Output Interfaces Antennas waveforms: sine waves Power supply interfaces: Type C interfaces Package Includes: 1pc Schumann waves Generator (without Shell) 1pc Power Cord note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.