Custom Frequency Generator V2 Key benefits Fast setup for immediate use in audio environments. Precise frequency control for experimentation and routine use. Portable and compatible with common power sources and audio devices. Solid acrylic shell and compact size for desktop or travel use. What it does Generates pure sine wave signals with adjustable frequency from 0.01 Hz to 30000 Hz. Default output set to 7.83 Hz for quick start. Outputs a 3 V signal amplitude through the 3.5 mm audio jack for connection to headphones or external speakers. Includes a capacitive touch pad to enter and confirm the desired frequency. How to use 1. Connect the supplied USBC cable to a wall adapter, laptop, or power bank and plug it into the device. 2. Attach earphones to the 3.5 mm output or connect an external speaker with an AUX cable. 3. Enter the desired frequency using the touch pad and press OK to begin output. Key specifications Working voltage: DC 5 V (operational range DC 4 V to DC 15 V) Working current: 9 to 14 mA Power interface: TypeC (supports TypeC to TypeC power supply) Default frequency: 7.83 Hz Adjustment range: from 0.01 Hz to 30000 Hz Waveform: pure sine wave Signal voltage amplitude: 3 V Audio output: 3.5 mm jack Shell material: acrylic Size with shell: 155 x 105 x 26 mm Weight with shell: 300 g Included in the box 1 pc Custom Frequency Generator V2 (with acrylic shell) 1 pc USB cable to improve conversion rates Compatibility and performance Operates from common 5 V USB power supplies and can function across a broader DC input range when needed. Output via a standard 3.5 mm jack makes it compatible with most headphones and linelevel speakers. Touch pad input allows precise numeric frequency entry for repeatable settings. Practical use scenarios meditation session: connect earphones and set a low frequency to use alongside breathing or mindfulness practices. Evening audio routine: play a selected frequency through a small speaker as part of a sleep preparation routine. Frequency imprinting: play a chosen frequency while placing a small object near the speaker for experiments in imprinting or conditioning. Notes The device provides a configurable signal generator for experimental and audio applications. Follow safe audio volume levels when using headphones or speakers.