[3 colors and unlimited brightness adjustable] Each head has an independent switch. Short-touch temperature adjustment mode (cool whiteamberwarm white). Long touch to adjust to the appropriate brightness (1%100%). To prevent accidental touch, pleasepress the power switch before use [2000mAh rechargeable battery] The neck lamp runs for 11 to 60 hours, and the long-term use is 2 weeks. It only takes 5 hours to charge with a 5V-2A adapter. No need to waste money to buy AAA batteries [Unlimited Flexible Arms] Say goodbye to holding a flashlight or wearing a headlamp, it allows you to accurately locate and focus the light. Covered with high-quality soft rubber, it can be folded into any shape you need [Eye care and indicator light display] No flicker, blue light filter design, advanced LED beads. Both children and adults no longer need to feel eye fatigue. The charging indicator and power indicator remind us to charge in time when the battery is low [Ergonomic design] fits the body and relieves the pressure on the shoulders and neck. When reading or busy knitting, crafting and crocheting, free your hands and help you focus on what you are doing without worrying about light