With this APP, you can more efficiently communicate with the DSD TECH Bluetooth module, which saves you a lot of time: The current list of compatible Bluetooth devices is as follows: 1, DSD TECH SH-HC-08 Bluetooth module 2, DSD TECH SH-M08 Bluetooth module 3, DSD TECH HM-10 Bluetooth module 4, DSD TECH SH-11 Bluetooth 5.0 module