Push on the button located on top of R2-D2's head, and he'll light your way with a brilliant LED light. It won't be a 3-D hologram of Princess Leia begging for help, but it's still bright enough to help you see the keyhole in the dark! The power for R2's light is supplied by 3 LR44 button-cell batteries, which are included and can be replaced. A fabric cord strung through the top of his head will attach him to your cell phone, wallet, or just about anything else; a ball-link chain is also included so R2 can keep track of your keys for you. Add this handy little astromech droid to your gear today!