Features: This LED neck lamp features three hues option:6000K, 4000K, and 3000K, with variable brightness controls to matchs different tasks and improve visual ease. Crafted with pliable silicone, the flexible arm allow you to angle the lamp, while its stable and gentle light ensures a comfortable experience. Equipped with a 1000mAh integrated energy cell and a USB C port, this neck lamp can be energized via a wall charging, computer, or power outlet, with a display for energy level tracking. For comfort, this neck lamp weighs only 144 grams and rest easily around your neck, making it ideal for daily use or portable tasks. Perfect for vehicle upkeeping, crafting, reading, outdoor excursions, pet care, and more, this foldable LED neck lamp is a multifunctional tool for various needs. Specifications: Color:Black/Gray Black/Silver Black Battery: Builtin 3.7v 1000mAh battery Working hours: 6-80 hours (depending on your mode and brightness) Color temperature: Warm light (3000k), natural light (4000k), white lighting (6000k) USB input: Type c charging Beam angle: 90° narrow beam There is flashing, blue light filtering design Package Includes: 1pcs Rechargeable Neck Lamp note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.