The U Step II Laser Light is a laser cueing module that attaches to the U Step II Walker. For users with Parkinson's or limited mobility who have freezing episodes, the bright red laser beam assists in breaking the freezing episode, and the sound feature provides a steady beat pattern for maintaining walking speed. The U Step II Laser Light module projects a bright, red laser on the ground that helps users who suffer from freezing episodes to extend their stride and maintain a steady gait. An audible beeping pattern can also be activated for additional gait assistance. The laser light module also features an audible cue can be adjusted from 59 to 130 beats per minute. The unit easily attaches to the U Step II walker and is activated by simply pressing the red button, and shuts off after 10 minutes of non-use. The U-Step II Laser Light requires two "AA" batteris (included) for power for up to 20 hours of use.Please note: The walker is not included. U Step II Laser Light Guide PDF