Where can I buy a cloud horn from a rural commercial bank?

You don't need to buy it, you can install it for free.

It is an application that can be downloaded directly from major app stores for free.

Cloud horn is a courier notification app, which can help couriers automatically call and send text messages to inform users to pick up express mail. At present, tens of millions of couriers deliver express mail every day in China, mainly relying on couriers to manually inform users to pick up the pieces. Yunnan adopts cloud center server and mobile internet technology to realize the intelligent process of informing robot that express delivery will send parts.