WattUp combats this problem with a type of beam-forming technology. That Bluetooth connection is used to focus a tight cone of electromagnetic waves on the target, and it can even track the device and recalibrate as needed. A standard Qi wireless charger is about 90% efficient, but Energous claims it can hit 70% at much greater distances.
Flash memory cards for digital cameras are now absurdly cheap. A 64GB SD card can be bought online for around Â£30. Thatâs enough space to store 5,000 raw files produced by a typical DSLR â or upwards of 30,000 JPEGs. These cut-price cards come with a caveat, though.lash memory cards for digital cameras are now absurdly cheap. A 64GB SD card can be bought online for around Â£30. Thatâs enough space to store 5,000 raw files produced by a typical DSLR â or upwards of 30,000 JPEGs. These cut-price cards come with a caveat, though.
Next Up In Tech. 1  AMDâs new budget 8-core Threadripper processor costs $549. 2  Samsung is already releasing a smaller Frame TV. 3  Gboard adds sticker and Bitmoji support, just in case GIFs and emoji werenât enough. 4  Sonyâs latest competitor to the GoPro is a cute black box. 5  SanDiskâs 400GB microSD card is the largest ever.