Description Instructions for use: 1. Product connection (using an auxiliary tool): During the event, enter the seat number on the official support site and automatically change the color to match the stage performance for a more enjoyable experience. (Some events may be excluded) 2. Lighting control: With Bluetooth connectivity, connect the official device and your smartphone to control brightness, color, and light mode, creating an ambient atmosphere. 3. Customize app appearance: Set a member image as the app’s background screen within the application settings. 4. Connect to YouTube channel: Watch various videos through the official YouTube channel. 5. Check battery level: Monitor the remaining battery level of the lightstick via the connected app. Function selection: Modes include steady light, slow scroll, fast scroll, and rapid flash Adjustable brightness: 1/2/3/4 levels Bright LED mode: RGB LED Bluetooth version: Bluetooth 5.0 (operating range up to 10 meters) Rod dimensions: 111 x 264 x 52 mm Silver color Plastic material Overall dimensions: length 27 cm, lamp width 10.5 cm, handle width 2.7 cm Design: round, stylish Material: plastic Application: suitable for children and adults; ideal for parties, schools, concerts, and other events. Package includes: 1 x V2 Lightstick 1 random photo card 1 wrist strap 1 packaging unit 1 instruction manual