Temperatures and continuous dimming: each head of this reading lamp has an switch, long press to adjust the brightness.After turning on the lamp, adjust the colour temperature with the button on the main body of the lamp.3 colour temperature modes: warm light (3000K), (4500K) and cool white light (6000K).The reading lamp automatically turns on the colour temperature and brightness of the last power off.Rechargeable and durable: Built-in rechargeable lithium battery with 1000 mAh, can work continuously for 6-80 hours when fully .You can charge it at any time from your computer, wall charger, car charger and power bank.Ergonomic design - free your hands: adopt advanced -free LED light beads to maximise your eye protection when reading.Ergonomic neck around design, the reading lamp is covered with soft silicone and the arm can be bent into any shape to get the most comfortable angle.When you wear it around your neck, you no need to hold a lamp or torch to light yourself, and you have completely free hands Lightweight and portable: weighing only 131 g, this reading lamp takes up little space and can be easily folded into a backpack or bag.Whether camping or travelling, this small reading lamp is the perfect for night use.Wide use: this neck light is ideal for night reading in bed, in the car or , but also for sewing, knitting, touch-up and even for outdoor use when camping, barbecuing, dog walking, night jogging, etc.It is an excellent gift for your lover, children, parents, friends.Material: plastic colour: grey Package Contents: 1 x Hanging neck light 1 x USB cable Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/- 1-3cm.