Very unreliable. They never "understand" (they say).
Simply, avoid any business with them.
Very difficult and slow communication. The "don´t understand" phrase is always present when we complain about this or that.
We had brought 8 units from them for a project. The tracker specifications don´t fully match with reality.
Incomplete and erroneous documentation lead us to ask them for server software code as for us it was impossible to make it to work (no handshake). Then they sent a new firmware (what means we will never have success by ourselves coding software for these trackers).
They promised the software ready in 1 week. After 1 month without software doing what we requested we realised they wasted our time, money and produced a big delay in our project.
We had asked for charge-back for the useless software (didn´t request tracker refund) and then they stop communication.
Horrible experience, so want to share for alert you about this Chinese company.
Date of experience: December 15, 2022