- FULL SIZE FOLDING WIRELESS KEYBOARD with MOUSE TOUCHPAD: A full-size keyboard that folds for portable use, designed to be compatible with Samsung S21 FE. It includes a built-in rechargeable battery that delivers up to 48 hours of continuous use and up to 560 days in standby. The keyboard features a touchpad for mouse control with left and right click buttons. Note: PHONE HOLDER/STAND NOT INCLUDED. - FOLDABLE TRI-FOLD DESIGN: Extremely thin and portable, the tri-fold layout makes it easy to carry on trips or in a bag. It is a convenient solution for travelers, business professionals, editors, and anyone who needs fast, easy, and error-free typing on the go. - ALL ANDROID PC MAC IOS CONNECTION MODES: Connects to Android, iOS, Mac, or Windows devices via wireless Bluetooth. With a long-lasting 560 days of standby time and up to 48 hours of continuous use, it serves as a versatile, all-in-one input device for multiple platforms. - WIDE & UNIVERSAL COMPATIBILITY: Built with Bluetooth 5.3 technology and compatible with iOS / Windows / Android. Note: For desktop PCs or laptops without Bluetooth, a third-party Bluetooth adapter (not included) is required before use. Folding size: 5.98" x 3.82" x 0.71".