You really don't need ear buds if you can hear exactly the same things the audience can hear, at the same level and quality, which is one of the wonderful aspects of the Bose and other vertical array sound systems. Ear buds are nothing other than tiny headphones that fit nicely into your ears. Some are wireless, and some are hard wired with a receiver worn on your belt or behind the ear. When I performed with a 5-piece country band, we had on stage monitors so we could place the monster, feedback prone speakers out in front of us and still hear what the guy standing next to you was playing or singing. With the newer mics and vertical array sound systems, this is no longer a problem.

Good luck,

Gary