First of all, no user manual is included with the device. You need to try to make all the settings yourself and explain what and how it works. The device itself is quite primitive and really, when you add up its price and shipping costs, it is not worth that much money. I would say - the price of the device is too high. In any case, the device should definitely be improved, not everything is perfect constructed. The order was received very quickly. However, the seller could also offer a less expensive shipping method. The device is packed very well. Communication with the seller is impeccable.

Отличная качество.