Features 1、[Durability] Made of high quality materials, the flashlight is wear resistant, heat resistant and durable. 2、[Waterproof] Using sophisticated production technology, the LED flashlight is waterproof and moistureproof. 3、[Equipment] Equipped with a strong magnet, equipped with a hook, convenient to use, easy to carry. 4、[Alternate Light] The red and blue lights on the side are 24 red lights and 24 blue lights alternately according to frequency. 5、[Use] Can be used for camping, hiking, mountaineering, emergency use, car maintenance, expedition and power outage backup. Specification Item Type: LED Flashlight Material: Aluminum Alloy, PC Product Color: Black and Blue Battery Capacity: 4000mAh Battery Type: Lithium Battery (Shipped with Built in Battery) Charging Method: USB Battery Waterproof Rating: IPX7 Lighting Distance: Front Light: Approx. 300meters / 328.1yd Lighting Mode: Headlights Bright, Headlights Flashing, White Light on the Side, Yellow Light on the Side, Red and Blue Flashing on the Side Package List 1 x LED Flashlight 1 x Data Line 1 x Chinese and English User Manual