About this itemRechargeable & durable: USB Type-C rechargeable which is reversible and therefore easier to plug in compared to other Micro-USB. Up to 80 hours (general read, single head) of powerful, non-dimming brightness with the included 1000mAh rechargeable battery.3 Colors & 6 Adjustable Brightnesses: 3 useful color temperature modes: yellow (3000K), warm white (4000K) and cool white (6000K). Each head has an independent switch for 3 levels of adjustable brightness. You can choose a comfortable setting as you like for reading, knitting, camping, or repairing, etc. Eye protection design & ergonomic: No flicker and blue light filter with advanced LED beads. No more eye strain for kids and adults. The arms are flexible and adjustable so you can get the most comfortable angle for you. Ergonomic design around the neck, and the hands are completely free. Partner-friendly: Special narrow beam (90) angel design. It is bright enough for the area you have positioned and at the same time dim enough not to disturb your sleeping partner. Product Guarantee: The original patent has been applied for. Approved by FCC, CE, RoHS, PSE. Worry-free 18-month warranty and friendly customer service. Product box contains: 1* LED neck light 1* USB Type-C cable (24') 1* User manual 1* Bookmark NOTE: Use the included Type-C cable or a cable certified by a third; AC adapter not included.