I have been using the Microsoft Universal Mobile Keyboard for a month, and I love this thing. I use this reliable Bluetooth keyboard for: - Surface Pro 3 at home and work - iPad - MacBook Pro Retina - iPhone 6 Plus This handy little keyboard can be Bluetooth paired to all these devices, and has a toggle switch to choose between key mappings. Hard keys are provided for volume, mute, media play, skip/back track, mute, and search hard buttons. The cover detaches magnetically, and has a rubberized coating. The keyboard powers itself up when the cover is opened, so there is no on-off switch to fumble with, or forget to power down. Just close the cover. I only got 12 hours - but I started using it upon receipt without charging it. Microsoft reports 6 months battery life. I gave it the first full charge after two weeks of about an hour use per day, and I am still on that charge Since it is wireless, I can use my Surface Pro 3 as a tablet, and keep the keyboard handy nearby. A mouse does come in handy. The keyboard cover includes a slot to stand an iPad or the Surface in portrait or landscape. I've included a picture of the latter. When traveling, it certainly is nice to have a keyboard for my iPhone. Greatly reduces my email via smartphone time, with more accurate typing, too.