Knot again: Just how headphone cords manage to tangle themselves up without any outside interference is one of life's minor mysteries. Bluetooth-enabled devices, however, offer a solution to this problem.
Sony has contributed its new DR-BT100CXP headphones to the cordless cause. These are basically upmarket earbuds that are joined to a small Bluetooth receiver, which also serves as a remote control, allowing the user to change tracks and adjust the volume. The earbuds connect to the receiver with 60-cm cords, so you don't entirely escape the tangle, but these are the only wires.
The device also includes a microphone so that you can use them as a cell-phone headset. Moreover, while the earbuds do not deliver as high quality a sound as regular mid-price headphones, they are at least a step up acoustically from the noxious creations that come packaged with your DAP or phone.
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