Hi there! Here is the written instruction of Flash to Music set up.
1. Take all the components out of the box.
2. Slide the cover out from the controller box.
3. Install batteries.
4. Slide the cover in.
5. Turn on the speaker and insert it into the controller.
6. Hold the power button for a few seconds to power on the controller.
7. The LED lights will flash a few times.
8. Turn on the Bluetooth function of your device and connect to Christ_LED.
9. Once the Bluetooth is functional, play your music collection and enjoy the light show!
10. But if you need more power for your music, use your own speaker!