Convenient for outdoor activities and leisure! Uses 37 high-brightness, long-life LEDs. Rainproof design for peace of mind! Adjustable size rubber band. You can choose your preferred lighting pattern with the switch: 7 lights, 19 lights, 37 lights, or flashing! Angle adjustment is also possible. Accurately illuminates the target area! Set of 5 Specifications: Power supply: Uses 3 AAA batteries (sold separately) Water-resistant type Size (approx.): 7cm x 7cm x 5cm Illumination area diameter: 5cm Weight: 130g *Please note: Insert the battery box so that the rail of the metal fitting on the outside of the box is at the top, aligning with the groove on the main unit. *This product is not subject to discounts. Thank you for your understanding. No comments, immediate purchase prioritized.