Enhance the audio experience and enjoy theatre-like sound at home with the Bose FreeSpace 51 Outdoor speakers. These speakers features an impedance level of 4 ohms. In addition, these speakers offer a 50-watt RMS power handling capability. These speakers are meant for outside, they have 360 degree projection are are designed for superior outdoor sound that only Bose can deliver. They are weatherproof, and designed to be permanently installed outside, buried up to 7.25" deep.