Item Name: Folding Keyboard Bluetooth Wireless Keypad For iOS Android Windows iPad Tablet. Product DescriptionHIGHLIGHT: [ USB Rechargeable ] - Build in 180mAh lithium battery,can fully charge within 2 hours and lasting 90 hours for no-stop high strength working. [ Portable Folding Keyboard ] - FK328 adapt folding design,can be folded into half size. Friendly to your travel and business bag,fold and go. [ Useful Numeric Keypad ] - Comparing to B033 ,the upgraded B033 Pro have add numeric keypad part. Which is much more useful than a limited size touchpad. [ Fossette Cancave Keycaps and Scissors Switch ] - Comfortable type feeling,Save effort abd low standard extra noise. [ Tilt Keyboard Body Design ] - Create a comfortable and ergonomic type gesture for you,friendly for long term edit task. [ Top End Chipset ] - FK328 use broadcom