Horrible customer service.
I recently purchased a Hytera ACS-01 cable from Two Way Radio Center. Unfortunately it did not work. Two Way's customer service was horrible. Not only did they not help me troubleshoot the problem, they tried to convince me that a cord with a microphone and PTT switch was receive only and not intended to transmit. I was forced to contact Hytera directly. Hytera's engineers confirmed I was using the cord correctly and that it was defective. Two Way refuses to authorize a return. Hytera had to put me in contact with a local distributor to resolve the problem.