【Multi-functionality and Compatibility】Supports Bluetooth-compatible wireless technology and easily connects to multiple devices including smartphones, tablets, laptops and desktops across iOS, Android, Windows and for Mac systems. 【Ergonomic Design】Thoughtfully designed for hand comfort, reducing fatigue during extended typing sessions and helping maintain proper typing posture. 【Silent Keys】Provides quiet typing experience, perfect for libraries or other environments where noise reduction is important. 【Additional Features】Includes multimedia shortcuts, customizable gestures on touchpad area, and easy device switching functionality for enhanced productivity and convenience. 【Portable Folding Design】Three-section hinge structure allows compact folding for easy carrying and storage, with magnetic protective case included. 【2-in-1 Integrated Design】Combines wireless keyboard with touchpad and numeric keypad functionality in one device, eliminating the need for separate peripherals. Specifications: Model: FK328T Material: ABS plastic Supported Systems: iOS, Android, Windows Number of Keys: 64 keys Bluetooth-compatible Solution: QKIE 5.2 Bluetooth-compatible Version: Bluetooth-compatible 5.2 Keyboard Lifespan (Keystrokes): 5 million keystrokes Response Time: 30 milliseconds Wireless Transmission Distance: 10 meters Operating Voltage/Current: 3.7V/1mA (when keys are pressed), 3.7V/7mA (when touch is at maximum) Built-in Lithium Battery: 180 mAh Battery Type & Capacity: Polymer soft-pack lithium battery 301850 180mAh Charging Time: 2 hours Usage Time: 80 hours Standby Time: >2 months Net Weight: 200g Unfolded Dimensions: 35.8*10*0.9cm Folded Dimensions: 17.8*10*1.8cm