Temperatures and continuous dimming: each head of this reading lamp has a switch, long press to adjust the brightness. After turning on the lamp, adjust the color temperature with the button on the main body of the lamp. 3 color temperature modes: warm light (3000K), neutral light (4500K), and cool white light (6000K). The reading lamp automatically turns on to the color temperature and brightness of the last power-off state. Rechargeable and durable: Built-in rechargeable lithium battery with 1000 mAh capacity, can work continuously for 6 to 80 hours when fully charged. Can be charged anytime via computer, wall charger, car charger, or power bank. Ergonomic design - hands-free: features advanced hands-free LED light beads to maximize eye protection during reading. Ergonomic neck-around design, the reading lamp is covered with soft silicone and the arm can be bent into any shape to achieve the most comfortable angle. When worn around the neck, there is no need to hold a lamp or flashlight, providing completely free hands. Lightweight and portable: weighing only 131 g, this reading lamp takes up minimal space and can be easily folded into a backpack or bag. Suitable for camping, traveling, or nighttime use. Wide application: this neck light is ideal for night reading in bed, in the car, or during travel, as well as for sewing, knitting, touch-ups, and outdoor activities such as camping, barbecuing, dog walking, and night jogging. Makes a great gift for loved ones, children, parents, and friends. Material: plastic Color: grey Package Contents: 1 x Hanging neck light 1 x USB cable Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual product. Measurement allows an error of +/- 1-3 cm.