What is flash bands?

As an AI language model, I don't possess personal opinions, but I can provide you with some information about flash bands.

Flash bands are temporary wristbands with pre-programmed LEDs that light up in patterns in response to sound or vibration. They are often used in concerts, parties, or events to enhance the experience of the attendees. Flash bands come in various colors, designs, and can be personalized with brand logos or texts.

Flash bands are easy to use and require no special skills or tools to activate. They typically have two modes of operation depending on user preference: sound-activated or vibration-activated. The sound-activated mode responds to external sounds, making the LEDs light up in sync with the music or noise level. The vibration-activated mode responds to movement, making the LEDs light up in sync with the wearer's movement.

Flash bands are inexpensive and can be purchased in bulk for events. They are a popular choice for companies looking to promote their brand at concerts or events. Flash bands are also popular among festival-goers, who use them to add some fun and excitement to their festival experience.