Product description 

• Magic Mouse 2 is completely rechargeable, so you’ll eliminate the use of traditional batteries.
• It’s lighter, has fewer moving parts thanks to its built in battery and continuous bottom shell, and has an optimized foot design — all helping Magic Mouse 2 track easier and move with less resistance across your desk.
• And the Multi Touch surface allows you to perform simple gestures such as swiping between web pages and scrolling through documents.
• Magic Mouse 2 is ready to go right out of the box and pairs automatically with your Mac.