Features: Fun interactive experience: illuminated sound simulation camera keychain, built-in LED light and sound module, providing unique visual and auditory enjoyment. 5cm bead chain design: suitable for hanging on bags or keys, easy to carry. Solved the problem of traditional keychains being monotonous and boring, adding fun to daily life. Night Safety Companion: LED light function, automatically lights up in dark environments, improves night visibility, and enhances a sense of security. Especially suitable for people who travel at night or engage in outdoor activities, ensuring that you can easily find the key in any low light situation. Parent child interactive artifact: By simulating the sound and lighting effects of a real camera, it stimulates children's curiosity and exploratory desire. Scenario: Suitable for parent-child interactive scenes, allowing children to learn photography knowledge in games, while also adding more joyful time to family outings. Specifications: Material: Plastic Size: 5cm/1.96inch(bead chain), 2.5x4cm/0.98x1.57inch(camera) Color: camera pink, camera blue, camera yellow(optional) Technical parameter: Lighting function, Sounding function Use scenario: Keychain decoration, Children's toy, Collection of photography enthusiasts Package Includes: 1 Piece Mini Simulation Camera Keychain with Light & Sound note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.