1. [FULL SIZE FOLDING WIRELESS KEYBOARD & MOUSE TOUCHPAD]:Finally, you can have full control to be compatible with Samsung Z4. It has a Built-In Rechargeable Battery that can be used for 48 hours (560 days standby). It comes with a mouse touchpad and left and right click buttons, providing very convenient and portable mini-size for user-friendly interaction. (PHONE HOLDER/STAND NOT INCLUDED) 2. [FOLDABLE TRI-FOLD DESIGN]:Our FULL SIZE Travel Keyboard is extremely thin and foldable, making it a perfect gift for those who often travel or are on a business trip. It allows you to operate your mobile devices on the go, enabling fast, easy, and error- writing. It's also a good choice for editors. 3. [ALL ANDROID PC MAC IOS CONNECTION MODES]:You can connect the keyboard with your device via Wireless Bluetooth to ANY Android, IOS, Mac or Windows Device. With a long-lasting 560 days of standby time and up to 48h of continuous use, it meets all your needs with just one device. 4. [WIDE & UNIVERSAL COMPATIBILITY]:With Bluetooth 5.3 technology, the foldable keyboard can work with 3 major operating systems: iOS / Windows/ Android. NOTE: [For Desktop PC Laptop without bluetooth function, you need to use third-party bluetooth adapter (not included) before use]. Folding size: 5.98' x3.82' x0.71' Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store