BTS Official Lightstick is an application that allows you to use a Bluetooth light stick to view your smartphone's screen and camera.

It also allows you to view the screen of the device by holding it up to the device's camera lens.

It requires an Android operating system and Android version 6.0 and up.

It is not compatible with some devices, such as some Android tablets and some smartphone models.

Here are the following permissions required:
- BLE: connect light stick
- Phone: read phone status and identity
- Device Storage: save QR code/ seat info etc.