I have the KO "pro" spectrum module and 2 pro RXs. I have used it for a couple of years and it still works great. I am just moving to the KO module. The module and one of the receivers is in near perfect condition. One has a small bare spot on the antenna. I have been using this receiver with no issues. Prices are shipped in CONUS ($160). Serious inquires only please.
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Thanks.