Alongside the new iMacs, Apple also introduced three new peripherals - the Magic Keyboard, the Magic Trackpad 2, and the Magic Mouse 2. The Magic Keyboard is an updated version of Apple's previous wireless keyboard. The main feature here is that it now has built-in battery, which is rechargeable. The keyboard recharges via a Lightning connector on the back. Apple claims the battery will last for a month or more between charges. The keyboard also uses a new scissor mechanism for keys for increased stability. Apple has also altered the key travel and made it lower profile, although hopefully it's not like the new MacBook keyboard, which a lot of people aren't comfortable with. The new Magic Keyboard is priced at $99. The Magic Trackpad 2 also has an internal rechargeable battery unlike the original. But that's not the main feature here. The new trackpad supports Force Touch like the ones on the new Macbook and MacBook Pro. There are four sensors underneath the trackpad that sense pressure and you can use the new gestures in OS X to take full advantage of the pressure sensitivity. The Magic Trackpad 2 is also 30 percent larger than the previous one and has an edge to edge glass surface that can be clicked anywhere. The Magic Trackpad 2 is priced at $129. Lastly, there is the new Magic Mouse 2. It also has an internal rechargeable battery. Unlike the Lightning port behind the keyboard and the trackpad, the one on the Magic Mouse 2 is placed underneath, so you can't actually use it while it's charging, which is pretty dumb. It's also lighter now and moves with less resistance across the surface, which is great because the previous one was pretty rough. It's still pretty flat though to use the multitouch gestures on the surface, which means it's still not going to be comfortable to use for those who like to use palm grip. The Magic Mouse 2 is priced at...
Source: http://www.gsmarena.com/apple_introduces_new_magic_keyboard_magic_trackpad_2_and_magic_mouse_2-news-14452.php