The smallest speakers are designed by Bose so the focus can remain on your home entertainment, not your speakers. Designed to bring music movies and TV to life with full immersive surround sound. Simply plug the adapters into a power source and wirelessly connect the receivers to the sound bar to enjoy your entertainment in minutes. Compatible with Bose sound bar 500 Bose sound bar 700 and Sound Touch 300 sound bar. Standing less than 4 inches tall Both bass modules have a wireless range of 30 feet.