Delivery speed is fast! That can be received by more than a day, NR110, this is very accurate, I have been with this before, just time is too long, the battery cant use, can only to buy a new one. High precision, the function is also useful, diameter is also what I need, useful, give a high praise! And the seller is very patient, very good? And finally see after what happened,, there is no problem now, the only know later.