Welcome to our store! 1、COMPACT AND PORTABLE: The USB rechargeable book reading light is designed to be compact, lightweight, and easy to carry, convenient to use anytime, anywhere. 2、FLEXIBLE DESIGN: The clip-on book light features a 180-degree free rotation angle and multiple rotation and bending methods, allowing users to freely adjust it according to their needs. 3、EYE PROTECTION: The book reading light has a soft, even, and glare-free lighting effect, so users will not be irritated and strained during long periods of reading. 4、THREE LIGHT COLORS: The USB rechargeable book light has three light colors, warm and cold light freely adjustable, you can choose the appropriate light color depending on different situations. 5、LONG BATTERY LIFE: The USB clip-on book light has a built-in 180mAh lithium battery and supports USB charging, with long battery life, suitable for indoor and outdoor use. Item Type: Clip-on Book Light Material: Plastic Product Size: Approx. 11x5x1cm / 4.3x2.0x0.4in Gross Weight: 51g / 1.8oz Battery Type: 1 x Lithium Battery (Comes with built-in battery) Battery Model: 402030 Battery Capacity: 180mAh 1 x ClipOnBookLight 1 x User Manual Specification 100% Satisfaction: Our customers are our top priority. If you find any product problems after receiving the item, such as damage and incorrect quantity of goods, please contact the seller immediately. We will do our best to provide you with satisfactory after-sales service.