A great way to create socially distanced events! - Silent Sound System three-channel headphones allow you to choose from up to 3 audio sources at once! However many channels of audio you want, that's how many transmitters you need. Each transmitter transmits one audio source. - Our mobile transmitters are great for yoga, Zumba, and other fitness classes. Add a wireless microphone and neoprene belt to your order for maximum mobility as you instruct! - Need an easier and more professional way to carry your equipment? We've got sturdy aluminum travel cases for small systems and rolling, padded flight cases for larger orders! ~ Silent Sound System is an East Coast leader in Silent Disco production and a trademarked brand with unique features that make us an industry leader in Silent Disco technology in the United States. We deliver quality sound — right to your door — locally and globally. Silent Sound System is music to your ears.~ Have any questions? Feel free to contact us!