Dual-Head Dimmable Book Light: Features 7 individual LEDs, offering warm, cool, or warm/cool combined light modes, each with three brightness levels. Eye-Protecting & Easy to Use: Soft, bright light enhances clarity and reduces eye strain. Simply press the button to adjust brightness and color temperature (2800K-7000K). Hold for 2 seconds to change color temperature, tap to adjust brightness. Flexible Gooseneck Design: 360° rotatable gooseneck for versatile placement on music stands, desks, or nightstands. 90-degree clamp with silicone grips prevents slippage and protects surfaces. Maximum clamp width: 1.57 inches. USB Rechargeable, Long Battery Life: Charges via USB cable (included) using power banks, computers, or wall adapters. Offers high brightness, long lifespan, and no heat generation. High-Quality Material & Portability: Durable, heat-resistant, and scratch-resistant ABS material. Lightweight (approx. 100g) and easily portable. Package Contents: 1 x Book Light Size: Approx. 8*24cm (Manual measurement, please allow 1-2cm error) Color: Black (Color may vary slightly due to monitor and lighting effects)