I assemble them myself using a name brand SD card, configure them with your DMR ID, callsign, and wifi and test them out. You don't have to worry about buying from China and getting one that won't transmit or that you can't find the proper offsets. Just plug it in and use it. Price includes priority mail shipping within the US. I'm a single parent doing this after his child goes to bed. I try to keep my prices as low as possible because it's a service. I'm not trying to make a living off you and won't take advantage of you. I help you out by doing something I know and you help another ham out down the road with what you know. Payment by Paypal please. .