Thank you for the Cooltech receivers. Both arrived on time and undamaged. I have checked them and they bound up immediately to my transmitter and all channels function normally. My only comment is that the instructions do not show the customer which pins the receiver battery should connect to. I happened to know already that the battery connects to Channel 8, but a newcomer may not be aware of this. It may be useful to mention this point to Cooltech. Other than that I'm very happy with the service, price and the product quality. Thank you Toppingmall Store and Aliexpress! I will definitely return for more items :):)
very satisfied