1. FULL SIZE FOLDING WIRELESS KEYBOARD MOUSE TOUCHPAD: Finally, you can have full control to be compatible with Karbonn Titanium S19. It has a BuiltIn Rechargeable Battery that can be used for 48 hours (560 days standby) with a mouse touchpad plus left and right click buttons. It is very convenient and portable with a mini size for userfriendly interaction. (PHONE HOLDER/STAND NOT INCLUDED) 2. FOLDABLE TRIFOLD DESIGN: Our FULL SIZE Travel Keyboard is extremely thin and foldable. It can be a perfect gift for anyone who often travels or is on a business trip. It allows you to operate your mobile devices on the go. Write fast, easy, and error! It is 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. Long Lasting 560 days of standby time and up to 48h of continuous use make this a suitable device for all your needs. 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 thirdparty 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.