If you've used a cellphone, you've probably held products tested by our machines. We develop and manufacture test systems for microspeakers, microphones, vibration motors, and other vibrating components and consumer products. Our customers range from some of the largest brands in the world, to small OEMs who need to show that they produce quality. If you need to be sure of the quality of your cellphones, washers, cars, or components as they come off the product line, come and visit us at SoundAndVibrationTesting.com .