Custom Frequency Generator V2 (with acrylic shell) Key benefits Precise frequency output for controlled audio signals, useful for relaxation, meditation, sleep routines, and imprinting frequencies onto objects. Simple and flexible operation with USB TypeC power and standard 3.5 mm audio output for headphones or external speakers. Compact, portable design with a durable acrylic shell for tabletop or travel use. Main features Pure sine wave output for stable and clean signals. Wide frequency range from 0.01 Hz to 30000 Hz with a default start frequency of 7.83 Hz. Touch pad entry for direct frequency input and an OK button to start output. 3.5 mm audio output for headphones or speaker connection. USB TypeC power input. Supports TypeC to TypeC power supply and can be powered from wall adapters, laptops, or power banks. Acrylic shell for a lightweight, protective enclosure. How to use 1. Connect the included USBC cable to the device and plug into a wall adapter, laptop, or power bank. 2. Plug headphones into the 3.5 mm jack or connect the device to a speaker using an AUX cable. 3. Enter the desired frequency on the touch pad. 4. Press OK to start the output. Specifications Working voltage: DC 5 V nominal, input range DC 4 V to 15 V Working current: 9 to 14 mA Power interface: USB TypeC (supports TypeC to TypeC) Default frequency: 7.83 Hz Adjustment range: 0.01 Hz to 30000 Hz Output waveform: Pure sine wave Signal voltage amplitude: 3 V Audio output: 3.5 mm Shell material: Acrylic Size (with shell): 155 x 105 x 26 mm Weight (with shell): 300 g Package contents 1 pc Custom Frequency Generator V2 with acrylic shell 1 pc USBC power cable Practical applications meditation sessions: Enter a target frequency to create a consistent audio tone for focused breathing or meditation practice. Audio imprinting: Connect to a speaker and expose small objects to a chosen frequency for imprinting or experimental purposes. Night routine support: Use gentle lowfrequency tones through headphones as part of a presleep routine. Compatibility and performance notes Works with any standard USB power source that supplies DC 5 V in the accepted input range. USB TypeC to TypeC power supplies are supported. Use standard 3.5 mm headphones or speakers for output. Performance depends on the connected audio device and environment. This Custom Frequency Generator V2 provides a straightforward, precise way to generate pure sine wave signals across a wide frequency range in a compact, portable package.