3 Color & 9 Brightness Adjustable: Can be adjusted to 3 Colors Temperature modes (warm 3000K, warm white 4000K, cool white 6000K), Each head owns an independent switch for 9 brightness levels dimmable to care your eye, choose a comfortable setting as you wish for reading, writing, knitting, camping, fishing or repairing etc. Rechargeable & Long-Lasting: Built in 1000mAh polymer lithium battery, powerful to operate more than 80 hours general reading after around 3 hours full charging. Partner Friendly: Special head design,illuminate the smallest area with bright enough light to protect privacy without disturbing your sound asleep partner at night. Portable & Lightweight: Ergonomic Design to free your hands and protect your eyes, Lightweight to forget the existence of the neck light, extremely convenient and practical, enjoy your reading, night jogging and mending. Flexible & Durable Arms: Ultra-Soft Silicone maximizes wearing comfort, even for several hours, bendable arms and can be strong 360rotated, easy to choose the best angle to meet your various needs.