Bose SoundLink Wireless Mobile
This can also be named Series I, as it is replaced by SoundLink Bluetooth Mobile Speaker II.
SoundLink Wireless Mobile has four 2-inch neodymium speakers double stacked on either side of the case. Also, it has two “dual-opposing passive radiators” which enforces bass output, exposed from front to back. This mounting technique also serves preventing vibrations and bouncing of the dock.