Computers, Laptops & Tablets Accessories & Hardware 6 Important Mice Features Pay attention to these details before you buy a new mouse By Lisa Johnston Writer Lisa Johnston is a former Lifewire writer and an editor who covers computer peripherals and other consumer electronics since 2004. our editorial process LinkedIn Lisa Johnston Updated October 17, 2019 Jonathan Kitchen / Getty Images Accessories & Hardware Keyboards & Mice Monitors Cards HDD & SSD Printers & Scanners Raspberry Pi Tweet Share Email Most desktop computers ship with a mouse. These are often basic peripheral devices and, while they might get the job done, they lack special features that could provide additional value. When you upgrade a mouse, consider some useful characteristics to fine-tune your shopping list. Ergonomics If you're a cube-dweller and you're going to be using this mouse for daily tasks, go with an ergonomic mouse. Although the definition of ergonomics varies from brand to brand, the mouse should at least contour to the shape of your hand. The only downsides are that there is usually a learning curve while you adjust, and ergonomic mice aren't ambidextrous. Size As with ergonomics, size definitions differ from one brand to the next. What qualifies as "full-sized" or "travel-sized" may not be what you're used to or what you need. Although most mice in retailers are trapped behind that darn clamshell packaging, some retailers have sample units on display that you can touch. Also, check out the computer display in the store to get an idea of what's comfortable for you. Battery Life If you go wireless, you're going to be replacing batteries from time to time. To extend the battery life of your mouse, look for one that comes with an on/off switch and use it. Receivers As with battery life, this is a concern for wireless mice. Does it use a full-sized receiver that juts out of the laptop, or does it use a nano receiver that lets you pack away the laptop without needing to be removed? Does it come with a receiver placeholder? Like USB flash drives, ballpoint pens, and spare keys, mice receivers are easily misplaced, so having a magnetic placeholder or a designated slot is immensely helpful. Likewise, check to make sure the mouse comes with the appropriate receiver. This usually isn't a problem for mice that use 2.4GHz wireless technology, but many mice use Bluetooth and often don't come with a Bluetooth receiver. Check to see if your computer has integrated Bluetooth before you purchase a Bluetooth mouse. Programmable Buttons Some people can't live without their programmable buttons, while others never figure out how to set them. As with ergonomics, programmable buttons can be indispensable time-savers if this is going to be your everyday mouse. If you're not sure you'll use them, look for buttons that are discretely placed so you can ignore them. Gaming Response Fans of online PC games require mice that can respond quickly and precisely. Attributes to consider include the mechanism of input, such as a laser, which might not work on reflective surfaces, or a rubber ball, the resolution of the tracker and the speed by which motion input feeds to the computer.