Pure Resonance Audio ComfortCard™ USB Sound Masking Generator - River

$ 89.99
$ 74.99

Pure Resonance Audio ComfortCard™

USB Commercial Sound Generator with Soothing River Sounds

Pure Resonance Audio has taken the mystery out of sound masking by creating an affordable USB sound masking generator that's small, portable, and incredibly easy to use. This Pure Resonance Audio ComfortCard™ river noises generator pairs the soothing sounds of river sounds with the all so familiar USB drive enabling you to plugin and play relaxing sounds with almost any USB mixer or mixer amplifier. Not only is it one of the most affordable sound generators on the market but it's also an extremely simple and versatile solution. Plug it in and instantly add unobtrusive and authentic sounds of a rushing river and birds chirping for masking speech intelligibility. You can also add relaxing background music to provide the ideal soundscape for spas, salons, massage parlors, counseling centers, therapy offices, hospitality venues, and a variety of other applications. Create a peaceful and calming atmosphere to help focus, reduce anxiety, and promote relaxation and wellness.

Wash The Stress Away

The ComfortCard™ USB River Sounds Generator Provides the Ideal Soundscape
to Let Go of Stress


With no installation needed, easily add sound masking and speech privacy for your business. Plugin and play with any USB mixer or mixer amplifier. No installation. No hassle.



Extremely small at only 3.27" H x 2.05" W x 0.15" D, the ComfortCard™ is a cost-effective portable solution. Unplug it, take it with you in your wallet or purse, and plug it back in.


Maintain comfort and protect confidential or sensitive patient, customer, or client information, as well as private conversations.



Strategic background noise is proven to restore a sense of natural balance and energy helping improve focus, calm concentration, and reduce anxiety by adding soothing sounds on the river and blocking out distracting noises.


Mix our proprietary authentic sounds of river noises with your favorite peaceful background music creating the ultimate ambient atmosphere of relaxation and wellness.


Designed by a former Roland® PHD Sound Engineer, the frequency-shaped noises focus on the frequencies you want to effectively block, ensuring higher efficiency and quieter masking levels.


Nature sounds provide the ultimate peaceful environment of healing and relaxation to restore balance, promote wellness, let go of stress, and reduce anxiety, as well as improve focus and concentration. Soothing river sounds played unobtrusively in the background create the ideal soundscape to calm the body and mind during treatments, sessions, in the waiting area, or while working behind a desk. An extremely simple and versatile solution, the Pure Resonance Audio ComfortCard™ USB River Sounds generator adds our proprietary sounds of rushing rivers and birds singing into spaces that are too quiet and lets you mix the relaxing background music of your choice to mask external noises and private conversations you don't want to be overheard.

Pure Resonance Audio's trusted industry professionals partnered with a former Roland® Ph.D. Sound Engineer to take the mystery out of sound masking by creating an affordable product that's easy to operate and uses a universally familiar interface. The Pure Resonance Audio ComfortCard™ is a USB river sound generator that's compatible with most USB ports enabling you to plug in and play with any USB mixer or mixer amplifier. Our frequency-shaped waves of ambient sound focus on the frequencies you want to effectively block, this ensures higher efficiency and quieter masking levels to achieve comfort, privacy, and focus.

Sound masking is an effective productivity tool that also offers speech privacy in the form of relaxing sound. White noise is proven to protect private conversations, as well as soothe and calm anxiety, improve focus, and boost creativity, by helping to reduce unwanted noises, eliminate distractions and prevent outsiders from overhearing sensitive information. Spas, salons, massage parlors, counseling centers, therapists offices, doctor offices, hotel lobbies, and general open office floor-plans often benefit from comfort sound masking devices. The added sounds calming river sounds cover existing noise in the area making the atmosphere more acoustically comfortable and overall provide a more relaxing, pleasant, and private environment for customers, patients, clients, and employees.


Noise Type: Soothing river sounds

Dimensions (H x W x D): 3.27" (83 mm) x 2.05" (52 mm) x 0.15" (3.81 mm)


  1. Insert USB into the USB media player of your mixer or mixer amplifier
  2. Turn up the volume to your desired level



USB ComfortCard:

Quick Start Guide