How can a wireless mouse go into sleep and still detect movement ?

Hisham Yousif

New member
I'm using a Logitech M215 Wireless Mouse. When I stop using it for a while it goes into sleep! When I start using it again the LED flashes again meaning that it has just been switched on.

My question is how can the mouse save power if it can still detect my movement?
i.e What's the difference between sleep and it's normal active state?

When a computer is in sleep most of its hardware except the memory are switched off. What hardware does the mouse have to switch off ?
 
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