hushhup.com
Sound Listening Environments Inc. - Acoustic treatments for furniture in schools and the workplace. Hushh-ups!hushh-ups, hushhups, hush-ups, hushups, hushh-up, hushhup, hush-up, hushup, Sound Listening Environments, tennis balls classroom, cut tennis ball, felt pad, precut tennis ball, acoustic treatment, chair noise, chair noise problem, classroom acoustics, classroom adaptation, classroom environment, classroom listening environment, classroom noise control, classroom noise reduction, deaf and hard of hearing, eliminate chair noise, environmental noise control, hearing impaired, improve classroom acoustics, noise
http://www.hushhup.com/