2025-06-11 00:00:00 Blette is a communication app using BLE5 technology. You can exchange messages with multiple people at the same time. If you have Blette installed, you can send messages even in places where there is no carrier such as 4G or 5G or Wifi. We have confirmed the operation of SAMSUNG's S10, S10+, S20, S21, and S22 as Android devices that can be sent and received. In the future, we plan to announce a usb dongle that enables long-distance communication by attaching it to each company's Android terminal.