I am wondering with all the different WiFi readers available on Amazon, do any of them really go to sleep?
Turbo3 says this one goes to sleep but voltage stays the same and you have to unplug and replug it in to awaken it, so..
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I want a small one that I can leave plugged in and not have to remember to turn off if I leave the car parked for 3 or more days at the airport or while on vacation?
I would be using it with an iPhone 6.