[Hengjie]

TLDR: I think this guy just received bad customer support, and likely an actual defective device. Author seems to be overdramatic about a mistake by their support team.

Their Jabra Evolve 75's are actually solid. I have 2 of them in my office, and we recently just purchased another pair. They work with and without the USB dongle. The reason why the USB dongle is there is because the bluetooth spec for live calls are not in the HD profile. It's likely not in HD to reduce latency. Therefore, they originally created the Link 370 dongle to use their own proprietary connection to get HD microphone quality, and instant pairing; this is a MUST in a busy office environment. I'm 100% certain their support made a mistake and said the device only works with the dongle. I've also tested it's bluetooth with USBC Macbooks and it works perfectly fine. I suspect he had a defective unit.

Other notes about this 75: - Connects with two devices at the same time, and switches between them over bluetooth ala Bose QC35 bluetooth. - Does not charge over USBC, but over Micro USB. - There are regular firmware updates for the Link 370, and their other Jabra devices.