ADJUSTABLE FOCUS: Intense Spotlight for long range observation can up to 600 feet, Circle Floodlight for large area illumination SPECIAL POWER: High-Efficiency and Great Output LED Chip, Super Bright Handheld Light POWERE SOURCE: 1×18650 Li-on Rechargeable Battery (Not Included) or 3× AAA Battery (Not Included) ADVANCED DESIGN: Skid-Proof design & Water Resistant design (Impressive performance among handheld flashlights)