You don’t have to settle for your uncomfortable computer mouse. In fact, you can use the Logitech M570 Wireless Trackball Mouse instead. This gadget has a shape that makes it even more comfortable for all-day use. That’s because it includes a built-in trackball that stays in one place and helps stabilize your hand and arm. Additionally, this wireless mouse uses a unifying receiver that you plug into your computer for easy connectivity. Surprisingly, all the M570 needs is a single AA battery for up to 18 months of battery life. Using a 2.4 GHz wireless connection, it ensures you don’t deal with slow speeds or dropped connections. Finally, because it’s completely wireless, it’ll let you use your connected computer from up to 30 feet away.