Rechargeable includes 18650 battery rechargeable charger, safety key and case. All aluminum has the best quality. The powerful green laser has a charging range of 5 kilometers. Pressing the power button with a safety key will produce a multi-point effect, which can rotate with the movement of the point to create an amazing effect. Bright, illuminate the distance, even in the daytime, you can see the green light. With the starlight hat, you can have more fun. Astronomy, teaching, hiking, camping, office supplies. Outdoor adventure, distant goals and instructions will send out distress signals, making your journey more happy and safe. Lightweight and practical, suitable for putting in a pocket or bag *Laser color: Green* Output power: 5000mW Output wavelength: 532 Nm / +-10* On/Key* Note: Avoid direct eye exposure to the laser beam* Output mode