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Đối với người đi nghe nhạc, thường sẽ có một số bài hát chậm phân khúc mà tất cả mọi người

For concert-goers, usually there will be some slow songs segment where everyone will hold up their glow sticks or zippo lighters with fire or candles etc to wave in the air and sway together with the songs performed. This app provides an alternative. You use this Android app on your smart-phone and wave your smart-phone in the air like the rest of them.

Besides the traditional single white color, you can have 3 colors that are "spread" out and they can rotate direction based on a time interval creating a special color effect in the dark of the night. Back at home, you can use this app again as a normal torch-light albeit with fancy color lights or plain white color.

To provide such feature, the smart-phone screen must be brightly lit at all times and hence it will deplete your phone battery. In concert, try to bring a spare battery along or only activate it on your most favorite slow song instead of all slow songs. If somehow you can find a way to charge your battery as you wave your smart-phone in the air, it would be ideal :)

To configure, tap Menu->Settings. Set your 3 colors and change color interval.

The application support English, Simplified Chinese, Traditional Chinese display.