Fast delivery has earned this rating. Have only problems, because the understanding is so bad. The devices are not shielded and only 8 meters apart away. Amazone have informed this and who emailed me an address from China. The MarketPlace company initially showed no reaction at all. I have sent and paid 21.- the package. The package never arrived there and after a month the package is returned. Have again have to pay 22.-. The MarketPlace company has left me totally in the lurch. Have twice received an answer and that was it. After no more reaction. I can only advise everyone to buy such a device. If it has a fault, it can be transported in the trash.
