3 colors and brightness. variable 3 colors: warm white (4000K), warm (4500K), white (6000K); short press the switch to change the color. Hold the switches down for a long time and don't move to access the brightness adjustment. (brightness is continuously variable) Motion-sensor and type-c rechargeable : The projector has an infrared motion sensor, press and hold the switch for 2 seconds until the ; the projector flashes, then release your hand, you can wave with your hand to turn the projector on and off. Built-in 1800mAh battery, only a few hours of charging can bring you long-lasting lighting. Working time: 10~80 hours (depends on brightness) 270 degree : The light source of the device is LED, the light is soft and gentle on your eyes and will not disturb your partner. The projector can be rotated to 270° to find your best view Foldable and collapsible arms : The arm of the lamp is foldable; you can also bend the device into your desired shape for different applications, perfect for adult children reading, camping, fishing, dog walking and hiking. Spotlight and Torch : 1, the spotlight can meet any your different needs during the day and night. 2 The torch has 2 modes: strong light mode and strobe mode (1. Long press the switch to enter strobe mode. 2. Press the switch again to turn off strobe mode)Light Source: LED Model Number: Hanging Neck Lamp Product Size: 250*160*30mm/9*6.3*1.2in Product Material: ABS + silica gel Capacity battery power: 1800mah Projector power: maximum 2.5w High beam power: maximum 1w High beam light source: 3 colors: cold light, warm light, warm white light Duration: about 10H LED reading light