Different computers load Bluetooth drivers at different points in their startup sequence.Larger dongles can fall off or become damaged in a laptop bag. If your computer requires a dongle, look for a low-profile model that you can leave permanently inserted into a USB slot. Wireless mice and their dongles sometimes grow legs.If you travel with one mouse but two computers, such as a laptop and a Windows tablet, pick a mouse that can support both without re-pairing each time you use it. Other models support two or three devices. Some mice pair with one computer at a time. Different mice support different numbers of paired devices.Although most modern Bluetooth mice go for months or years on a single set of batteries, Murphy's Law suggests your mouse will die at the worst possible moment. You'll either need spare batteries or a charging cable for wireless mice with non-replaceable batteries. The wireless mouse requires batteries.Although you can go as far as 33 feet away from your computer with a Bluetooth mouse, taking the mouse out of range might require that you re-pair it.

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