Omg… now I walk in dark and on the road. Really danger because of I don’t have any safety light on my hand. This problem can solve already. If you have IPhone 4, you can install bike light in your iPhone 4 and just bring it anyway. If the problem comes again, you just take out your iPhone and switch it on. Now you already solve this problem. Is that IPhone 4 helping you in your safety? Try it yourself.

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