1. Features: - It is 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 up to 12 hours. - Press the left button (the button with a groove) or the right button to turn on the light. - Hold the left button or the right button for about 3 seconds to turn off the light. - Press the left button to switch to the next mode, and press the right button to return to the previous mode. - Press the right button when the light is off. After the device is turned on, the light will 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