1. Partner Friendly & Tailored Brightness The book light has 3 colors and 9 brightness levels to choose from: Yellow (3000K), Warm White (4000K), Cool White (6000K). Long pressing the central button of the neck light turns it on and changes the color. Pressing the button on the light arms allows you to control the light and brightness according to your preference for each arm separately. Especially when reading at night, your partner will not be disturbed. 2. USB C Rechargeable & Our book light for reading in bed is built with a 1000mAh rechargeable battery. The Type-C port takes 2 - 3 hours to be fully charged with the included Type-C charging cable. It supports repeated charging, which is economical and environmentally friendly. Moreover, the reading book light can last up to 80 hours after being fully charged. 3. Flexibility & Ergonomic Design Our Neck Reading Light is made of ABS and soft silicone material, lightweight and durable. The arms are bendable and rotatable so you can get the angle. It has an ergonomic neck-around design and is totally hands-! 4. Eye Protection Enriched with eye protection technology, our enclosed LED light provides wide, even, and gentle illumination without flickering or harsh shadows. With our reading light around your neck, you can ly immerse yourself in a cozy reading corner, away from harsh and uncomfortable lighting. The knitting also makes for a thoughtful and relaxing gift!