1. [Full-Size Folding Wireless Keyboard and Mouse Trackpad]: Finally, you have full control compatible with Oppo K12x. It has a built-in rechargeable battery for 48 hours of use (560 days on standby). It comes with a mouse trackpad as well as left and right click buttons, providing a very convenient and portable mini size for user-friendly interaction. (Phone holder/standby not included) 2. [Foldable Tri-fold Design]: Our full-size travel keyboard is very thin and foldable, making it a perfect gift for people who travel frequently or go on business trips. It allows you to operate your mobile device on the go, writing quickly, easily and without errors. It is also a good choice for editors. 3. [ALL ANDROID PC MAC IOS CONNECTION MODES]: You can connect the keyboard with your device to any Android, IOS, Mac or Windows device via wireless Bluetooth. It has a standby time of up to 560 days and a continuous use time of up to 48 hours, meeting all your needs. 4. [Wide and Universal Compatibility]: With Bluetooth 5.3 technology, this foldable keyboard is compatible with the three major mainstream operating systems: iOS / Windows / Android. Note: [For desktop laptops without Bluetooth function, you need to use a third-party Bluetooth adapter (not included) before use.] Folded size: 5.98" x 3.82" x 0.71"