DOKEEP LED Lantern USB Rechargeable White/Red Light with Hook ※Almost unused ※USB is Micro USB ※From the sales page below 【Extremely Small Size and Super Powerful Performance】 ① Ultra-compact size, measuring φ2 x 4cm and weighing only 11g, the same weight as an Apple AirTag. ② Employs high-brightness LED chips, emitting up to 250 lumens. ③ Built-in rechargeable 250mAh lithium polymer battery, allowing for up to 50 hours of continuous operation. ④ Equipped with a USB interface for easy charging anytime. ⑤ Built-in smart adjustment program to ensure uniform brightness. 【Various Functions and Uses】 ① Three light modes: White strong light (250 lumens / continuous 3 hours), white weak light (30 lumens / continuous 30 hours), red flashing warning light (30 lumens / continuous 50 hours). ② Various fixing methods are available, allowing direct use on a flat bottom surface, and magnetic adsorption allows easy attachment to any iron surface. It can also be hung on a keychain or bag, making it a very portable EDC light. ③ Can be used as a small flashlight, camping LED mini lantern, pocket light, floodlight, night light, warning light, night running light, reading light, ambient lighting, pet light, etc., making it very practical.