【Rechargeable & Environmentally Friendly】Built-in 1800mAh battery, when the battery is fully charged, 100% brightness can only be used for 8-80 hours, with a charging interface, save the cost of purchasing batteries and reduce the production of waste batteries, making it more environmentally friendly. 【Comfortable and Adjustable Arm】The ergonomic neck support can be adjusted to any angle to fix it on the neck, so that it does not move freely and holds your neck comfortably. It can also be set as a desk lamp. The shape is used and it can be used on the desk. It is also ideal for reading, knitting, camping, handmade, and can be completely hands-free when you are doing something. 【Eye Caring & Not Disturb Others】Children and adults no longer have eye fatigue, It is bright enough for the area you have positioned and will not disturb your sleeping partner. Brightness adjustment can reduce the range of light without affecting your reading or sleeping partner. It can be given as a gift to