WIZO Ultra-thin Portable Foldable Bluetooth Keyboard, Silver High performance low consumption Bluetooth chipset: Use the us Broadcom Bluetooth 3.0 chipset, instant and stable connection with strong compatibility Ultra-thin, light, compact, foldable: Folded size 5.2" *2.95" *0.53", unfolded size 10" *2.95" *0.2" Full-size key and space: 2.5mm key typing depth, 4mm key space and 15mm*15mm full-sized key creates quiet and nice typing experience With built-in polymer battery: The micro-usb re-chargeable 200mah polymer battery can be fully charged in 30 minutes Plenty of hotkeys for various function: The hotkeys allows you to conveniently control the music play, volume adjustment, photo shooting etc.