The Vibro-Acoustic Pillow was designed to be small enough to hug, fit behind a client's back in a wheelchair or be used in bed. The Pillow has one stereo speaker that offers vibratory input and a built-in connector that uses speaker wires that are easily connected or disconnected from our stereo units. This item is covered in lead and phthalate compliant material. Colors may vary. All items are to be used with any Southpaw Rover/Stereo.