Large keycap design, more comfortable typing experience, reduces the probability of mistypingPortable folding Bluetooth keyboard, small size and lightweight, easy to carryThe large-size touchpad is convenient to useBuilt-in 140mAh rechargeable lithium battery, convenient to charge and useCompatible with multiple systems, suitable for iOS, Android, WindowsMulti-device compatibility, supports mobile phones, tablets, notebooks, desktop PCs, and other devices (devices need to have Bluetooth function) Specification: Unfolded size: 304.1*216*6.1mmFolded size: 152.4*100*19.8mmNumber of keys: 81 keysNet weight: 275gBluetooth version: Bluetooth 3.0Compatible systems: Windows, iOS, AndroidKey operation life: 3 million timesWorking distance: 8-10 meters without obstaclesLithium battery capacity: 140mAh Package included: 1 x Bluetooth Keyboard 1 x Charging Cable 1 x English and Chinese User Manual