1. 20-in-1 Multifunction Cleaning Kit: This kit contains 20 accessories that work with most devices such as smartphones, headphones, computers, and digital cameras. It can clean stains, dust, and debris, and it includes tools to remove keycaps from mechanical keyboards. The separate extension design allows you to attach extension rods to increase tool length for reaching longer or difficult areas. 2. Headphone Cleaning: Thoroughly clean earphones with no dead spots. Includes a cleaning brush and a plush wand for deep cleaning headphone charging cases and dust. The headphone brush can reach holes and microphone openings, and the cleaning nib can deeply clean gaps and small edges. 3. Keyboard Cleaning: Easy cleaning of keyboard gaps. Use the keycap puller to lift keys vertically. Remove the keycaps, then use the stems and related tools to lift the stems and clean thoroughly. The kit includes a keyboard brush and additional extraction tools to remove dust from gaps. Note: interchangeable mechanical keyboard stems. 4. Screen Cleaning: Use the cleaning liquid to remove greasy fingerprints and restore a like-new look. The package includes a microfiber cloth. After spraying and wiping, screens will be clean as new. It can clean not only phone screens but also screens on televisions, computers, cars, handheld devices, and more.