- FULL-SIZE FOLDING WIRELESS KEYBOARD & MOUSE TOUCHPAD: Experience seamless control with our wireless keyboard designed for the Karbonn Titanium S21. It features a rechargeable battery lasting up to 48 hours of use (560 days standby) and includes a mouse touchpad with left and right click buttons, ensuring a user-friendly experience on the go. (Phone holder/stand not included) - FOLDABLE TRI-FOLD DESIGN: This ultra-thin, foldable keyboard is perfect for travelers and business professionals. Its compact design makes it easy to carry, allowing for fast and efficient typing wherever you are. Ideal for anyone who needs to write quickly and accurately. - UNIVERSAL COMPATIBILITY: Connect effortlessly to any Android, iOS, Mac, or Windows device via Bluetooth. With a standby time of 560 days and up to 48 hours of continuous use, this keyboard meets all your mobile computing needs. - WIDE COMPATIBILITY WITH BLUETOOTH 5.3: Utilizing advanced Bluetooth 5.3 technology, this foldable keyboard supports the three major operating systems: iOS, Windows, and Android. For desktop PCs or laptops without Bluetooth functionality, a third-party Bluetooth adapter (not included) is required. - COMPACT SIZE: When folded, the keyboard measures just 5.98" x 3.82" x 0.71", making it an ideal companion for travel, business meetings, or remote work setups. Use Cases: 1. Write emails or reports while traveling on a train or plane, enjoying the convenience of a full-sized keyboard. 2. Edit documents or create presentations during business trips without the hassle of bulky equipment. 3. Use as a portable solution for students who need to take notes in class or during study sessions. This keyboard combines functionality, portability, and compatibility, making it a valuable tool for any professional or student.