A massage device with a waterproof and removable battery compartment that enables at least one battery to be removed or installed from the device is disclosed. The massage device comprises a body with middle, proximal, and distal portions. The removable battery compartment enables battery(s) to be installed or removed from the proximal portion of the body while providing a waterproof capability. In the preferred embodiment, the removable battery compartment is installed by a simple twist and slide motion.