The SoundLink Color II keeps track of the last eight devices to have paired and connected with it, dropping the least recently used when a new one is paired. When in Bluetooth mode, the SoundLink Color II searches for and connects to the two most recently connected active Bluetooth-enabled devices. It will only receive audio from one device at a time.If you wish to connect to a previously paired device other than the one(s) already connected, press the Bluetooth button. Press once to identify the currently connected devices; press again (within three seconds) to search through other recently connected devices on the pairing list. If you wish to connect to a new device, press and hold the button until the indicator light blinks blue. If voice prompts have been disabled, the Bluetooth button will behave differently; one press will make the SoundLink Color II ready to pair.