Well... at least they're honest:
2.2G proceeds bitcoin mining machine daily revenue is calculated as follows:
(2.2G / whole network operator force) * 3600
August 14 the whole network operator force is about 400T, then this mining machine daily output is about
(2.2/400000) * 3600 = 0.02 bitcoins
In accordance with the exchange rate a bitcoin == 600 yuan to count
And this mining machine without electricity daily income of 12 yuan
When the whole network operator rose 4000T force when (high probability event, will soon happen), then the output of the mining machine is only 1.2 yuan per day
So when you buy this mining machine, please fully understand this risk, that is likely to buy this mining machine invested money may never be able to recover the cost of this .