The all-new Magic Trackpad 2 has been enhanced to deliver more comfort and functionality than ever before. It includes a built-in rechargeable lithium-ion battery that charges fast, lasts about a month or more between charges, and eliminates the need for disposable batteries. With the included Lightning to USB cable, you can charge your device and automatically pair it with any Mac.
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This one is rechargeable and the old one is wired, which would be perfect for a MacBook user wanting a trackpad. As a Mac Pro user, it doesn't make much of an impact. Overall the trackpad is a nice product; I like the new look and finish. 3.5 stars because of price.