That means laptops and mobile phones with Bluetooth 4.0 will have to switch between the new low-energy technology and so-called classic Bluetooth technology depending on the device they are talking to and how much data they are transferring. It also won’t work if you are trying to talk to an older Bluetooth device that lacks the low-energy feature. But low-energy technology is only meant to be used when transferring short bursts of data. The Bluetooth SIG says the new low-energy technology (PDF) feature means that Bluetooth 4.0 chips are optimized to run on a coin cell battery for a year or longer. ![]() ![]() ![]() Both the Bluetooth SIG and the Wi-Fi Alliance are claiming their specifications will use power-saving technology for battery-powered devices.
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