Usage Tips:Features: brand and high qualityLED neck lamp, just hang this book lamp on your neck, so you can free your hands and for focus on work. It is very suitable for night reading, night jogging, camping, etc.4 LED and 3 light modes, each end is designed with 2 LED lamp beads. 3 lighting modes can be switched.Flexible adjustment, the beam angle can be adjusted freely, and the best lighting angle can be selected according to the needs of different environments.USB rechargeable, built-in 800mAh battery, can be easily charged through the USB port.The lightweight, compact and flexible design makes it easy to fold into a smaller size for easy carrying, and easy to carry in a backpack or suitcase.Specifications: Material: PlasticWeight: 150gTotal Length: 61cm/24.02inchColor: BlackBattery Capacity: 800mAhPackage Includes: 1x Neck Lightnote: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.