A:AnswerStart walking away from your router and keep refreshing the internet. Once it doesn't pick up signal, that's how far you can be :)
Also, look at the wifi signal bar go down.
Hope this was helpful.
A:AnswerThe tablet comes with a 1-amp charger and and USB2 micro to A cable. The micro connection is used by many android tablet and and phone manufacturers.
A:AnswerIt is good, may be not quite like the retina on the most advanced IPAD, but I am OK with it!
Lets face it is only $49!
Well worth the cost IMHO!