1. Features: - It is relatively more environmentally friendly and practical compared to traditional disposable glow sticks that use harmful fluorescent materials. - The glow stick is powered by 3 AAA batteries and can be used for around 12 hours. - Pressing the left button (the button with a groove) or the right button can turn on the light. - Holding the left button or the right button for about 3 seconds can turn off the light. - Pressing the left button can switch to the next mode, and pressing the right button can return to the previous mode. - Pressing the right button when the light is off, after the device is turned on, the light may glow red. 2. Specifications: - Material: ABS - Dimensions: 25 * 3 cm - Power supply: 3 AAA batteries (not included) - Lighting time: Approximately 6 to 8 hours of continuous lighting 3. Items included: 1 glow stick