Hands-Free Reading LightThe hanging neck reading light adopts ergonomic neck around upgrade design. Lightweight, eco-friendly, durable and portable. Completely free your hand. Skin-friendly silicone arm can be flexible and adjustable Convenient to carryThis neck reading lamp book cover is made of aluminum alloy and silicone tube. Soft and comfortable instead of bulky when sitting and lying down, no neck discomfort even when worn for a long time Adjustable brightnessThe reading light has 9 levels adjustable brightness and 3 color temperatures (yellow, warm white and cool white). No flicker, blue light filter design with advanced 8 LED chips to achieve more even luminance than ordinary LEDs Rechargeable and Long Lasting Charge without USB cable, built-in 550mAh rechargeable lithium battery on each side. 1.5 hours full charge can be used wirelessly for 5-10 hours Wide range of applicationsThe LED reading light is ideal for reading books in bed, camping, running the night, knitting, etc., indoors or outdoors. You can choose a comfortable environment for reading, knitting, camping or repairing, etc. Product specifications: Exquisite aluminum alloy shell + skin-friendly silicone hose , various shapes, no screws in the shell, simple style; The light is adjustable in 1600K-5500K-2800K three-color light, and the brightness gradually decreases; Maximum brightness: 90 lumens; 8 super bright LEDs, power 1W; Power supply: built-in dual power supply 550mAh + 550mAh ternary polymer lithium battery; Working time time: about 5-10 hours (varies with brightness); Charging time: about 80 minutes, the red LED indicator lights up when charging and automatically turns off when fully charged ; Lighting function: This product has a memory function to turn on the brightness of the light, and the default is the last brightness used; App Quickly press the power button to turn on/off the light, long press the power button to adjust the light from current brightness to 100%, release the power button, then long press the power button power supply, the light brightness will be adjusted. from 100% to 15% Adjust the brightness as needed; Color temperature mode with memory function, the default is the last light color used; When the light is on, short press the M key to change the light color cyclically: 1600K-5500K-2800K; The product has a travel lock function. When the light is off , press and hold the power button for 3 seconds and the light will flash twice, and the system will automatically enter the travel lock function. In travel lock mode, you need to press the power button and hold it for 3 seconds to turn it on for the first time;