CISNO 1000 Lumens LED Tactical Flashlight Torch Pressure Switch with 1'' Offset Mount for Hunting Hiking, Battery Not Included-Flat Black BATTERY NOT INCLUDED: This flashlight does not come with the 3.7V 18650 battery. Please purchase the battery separately(ASIN: B017JN0OME). Our product with one-year warranty and five stars satisfied guarantee, any quality problem please email us, we will try our best service you. UPGRADED PRESSURE SWITCH: Designed for LED tactical flashlights, features a coiled cable that can stretch from 10.9 to 21.8 inches. Clicking its quiet pressure switch will provide full momentary illumination exactly when you need it. Perfect for outdoor activities. QUICK RELEASE OFFSET MOUNT: Quick attaching and detaching, equiped with cam lock, detach the mount in seconds.Fits all 20mm rails.Guarantee high closely target outdoor activities. WATER RESISTANT | ALUMINIUM BODY - Made of high quality 6061T Aluminum with waterproof o-rings.Anti-abrasive coating. Skid-proof, waterproof. It can use in rainy days (BUT DO not put it into the water for long time). WIDELY USE:Easy to carry, small enough to fit in your pocket, handbag, drawer, or car compartment. Perfect for camping, hiking, fishing, running, dog walking, power outages, targeted searches and general household use.