Yes, you can download the Mi-Light Cloud app the Apple App Store & Google Play Store.
Please restore the controller to factory settings and then try pairing it again.
No, The 5 in 1 LED controller connects to RF technology and works with the Mi-Light Cloud App. There is an optional remote control available.
No, The 5 in 1 controller is not compatible with Bluetooth. It connects via WiFi & RF technology.