2 in 1 RGB LED Headlight Bulb Kit Smartphone App Controled Bluetooth RGB Demon Eye LED Headlight Color Changing Strobe & Music feature H4 9003 HB2

App I was informed to use doesn't work at all so far. Some other app seems to work but only get limited colors. Awesome super bright lights though. When my high beams are on it's like daytime at night. Seem to outshine everyone else out there. Lots of bugs I've had to work out through out the process of wiring my entire car with new accessories.

The app sucks or the BD receiver is cheaply made hard to sync via BD together for the high price I paid for them

Honestly haven’t been able to even get the bulb INTO my headlight assembly. For some reason the clips won’t line up right and end up getting stuck and not turning any further (locking tight). I’m other words, I can turn it until it starts to get right but won’t stay tight.