The battery is built-in, the top of the battery and an insulating sheet to prevent electricity, this product is definitely new! Small and powerful: Super bright CREE LED XPE2-R3 U2 white light flashlight ,lifetime 50000 hours with 200 LM. Hard anodized aluminum alloy for durable, stable and non-slip performance. Feed: 1 AAA battery (Not included) Compact and lightweight: The flashlight is compact in design. It's convenient to carry in jacket pocket or in the car every day for outdoor camping, cycling, dog walking, jogging and emergency situations. Product Description Color: XP-1 Features on: XP-1 1. The lightweight design makes the newly designed SKL XP-1 easy in your pocket, backpack, wallet or tool bag 2. It is ideal for multiple indoor and outdoor applications including research, camping, hiking, hunting, or even emergency lighting in the event of a power outage. 3. With a ruthless metal clip, you can clip it to your shirt pocket or simply flip it over and turn it into a versatile cap. A great design is that the O-ring glows around the lens in the dark and is easy to find in the dark. Specification: Type of LEDs: CREE LED XPE2-R3 Material: Aircraft Aluminum Color: Black Dimensions: 90 x 15mm (length * diameter) Lumen: 90 LM Switch: tail cap (ON / OFF) Waterproof level: daily waterproof Power supply: 1 * AAA battery（Not included） Scope of delivery: 1 x Mini flashlight Friendly customer service: Thank you for choosing our products. If you are not satisfied with our products, please do not hesitate to contact us. In every customer relationship, we have strived to be a reliable partner and to achieve complete customer satisfaction. Note: Data is manual measurement, please allow error from 1-105cm, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.