To replace batteries: Twist top counterclockwise until top comes off, shake pendant upside down to remove old batteries or tap gently on hard surface. Add 3 new batteries (button side down, flat side up). Screw top back on clockwise.

To replace LED color: Twist top counterclockwise until top comes off, shake pendant upside down to remove old batteries or tap gently on hard surface. Remove LED diode underneath batteries, replace with new LED color of choice. Add new batteries (button side down, flat side up). Screw top back on clockwise.