Well according to the VERY Limited documentation the USB is charging and Frequency Download. I also tried them with other FRS radios, and not transmitting on FRS. I will get out the scanner and check with that. I don't see it showing up as a port on windows or a TTY device on linux when I plug it in. Probably just going back to Amazon.

--- ======================= Chas.

On Tue, Oct 26, 2021 at 12:19 PM Chas. chas@num1pirate.com wrote:

Has anyone figured out what radio on Chirp works with this unit from Amazon?

TWAYRDIO Mini Two Way Radio 2W UHF 400-470Mhz Long Range Walkie Talkie 16 Channels Small Handheld Radio for Kids/Adults (2 Pack)

https://www.amazon.com/dp/B07SR9LN84