This B-Tac 500MW High Power Laser Pointer Kit contains not only a laser pointer but also necessary accessories including a charger, two keys and a battery. The battery is rechargeable with the attached charger, very eco-friendly, and is of large capacity for long working hours. The keys are designed for locking when you are not using the laser pointer, ensuring safety. When it comes to the laser pointer, it features high power design to serve for not only pointing but also lighting. Ideal helper for your work and life! Grasp the chance and take it home!