Features: This portable wireless keyboard boasts a high sensitivity touchpad, quiet and quick USB recharging, ensuring you stay productive. Engineered for convenience,comfortable typing and Wireless connection to effortlessly switching between two devices. This lightweighted keyboard with 140mAh rechargeable battery, and efficient conserves power. Convenient for class, or sending emails from the airport, this wireless keyboard ensures you can work comfortably and efficiently The wireless keyboards permit users to instantly change their tablet or phone into a tiny laptop computer for fast, comfortable typing.Wide application, for most modern devices, for wireless devices. Specifications: Size：about: 34.3x11.47cm/13.5x4.52in (keyboard Unfold） 18.3x11.47x1.95cm/ 7.2x4.52x0.77in (keyboard folded) Color: Black Component ABS Battery: 140mAh rechargeable Working voltages: 3.7V Sleep time: 10 minutes Sleep current: less than 17UA Working distance: 10meters without obstacles Package Includes: 1PC Wireless Folding Keyboard note: Due to the problems of lighting effects there will be tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurement.