Bose^® Link is a smart expansion protocol available in Bose products. It allows for seamless expansion of Lifestyle® systems so customers can enjoy different audio sources in different rooms, even outside. It simplifies the connection and enables better communication between the system in the main room and other rooms throughout the customer's home.

Bose uses an audio stream-based approach which offers far more flexibility than the traditional zone approach. In a zone approach, audio systems in different rooms are physically linked together. Two rooms in a zone, such as the master bedroom and the kitchen, must always have the same audio output. With the stream approach, each room gives the listener a choice between the two audio streams, so the person in the kitchen can listen to the radio while the person in the bedroom listens to a CD. In addition, each person can enjoy the source that they have selected with independent On/Off, independent Mute, and independent volume control.

• Independent on/off, mute, and volume control in up to 15 rooms.
• Dual stream audio access so that different people can enjoy two different audio sources in different parts of the home at the same time
• Multiple Lifestyle stereo amplifiers can be assigned to specific rooms and specific Lifestyle radio frequency remote controls.