Have you ever experienced the problem with iPhone battery? I have my iPhone 5 for almost three years, and the batter life keeps decreasing. Finally, I can’t stand it and try to find a solution. And it turns out it’s not hard to replace the battery by yourself. (Changing battery by an Apple Tech can be […]

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Bose QC15 turns out to be a great headphone, especially in the noise cancelling area. When I was doing experiment in a lab, the sometimes I unplug the wires and just use it as a noise-cancelling headphone and I feel so free!  Then what if I make a Bluetooth connection to the qc15? It turns […]

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