The flasher does not require on-site training. Sending you a video to watch at home is tantamount to training. After giving you a three-piece set from 200 yuan, the mobile phone can download a software to take orders. Mid-term starting price 14.9 yuan, more than four kilometers. The unit price is calculated separately. It is difficult for the courier to grab the bill, not deliver it. More people are distressed because they can't get a good order.