Remove pull tab to activate batteries. Press center button to activate the laser, which emits a red beam from the end of the toy (aperture). The bean is emitted as long as the button is pressed. To replace batteries: push and twist cap of toy. If needed, use a small Phillips head screwdriver to loosen the screw near the base of the key ring before pushing and twisting the cap.

KEEP new and used batteries OUT OF REACH OF CHILDREN and PETS. Seek immediate medical attention. If a battery is suspected to be swallowed or inserted inside any part of the body. Even used batteries may cause severe injury or death. Call a local poison control center for treatment information. Do not mix old and new batteries, different brands or types of batteries, such as alkaline, carbon-zinc, or rechargeable batteries. Remove and immediately recycle and dispose of batteries from equipment not used for an extended period of time according to local regulations. Do not force discharge, recharge, disassemble, heat above manufacturer's specified temperature rating or incinerate. Doing so may result in injury due to venting, leakage or explosion resulting in chemical burns. Batteries must be disposed of properly. Do NOT dispose of batteries in household trash. Avoid direct eye contact with the laser beam. May harm eyes. Do not aim laser at people or animals. NEVER point any laser toward an aircraft or vehicle. Shining a laser at an aircraft is illegal and a felony in the U.S.