Where previous CES conferences showcased improved fidelity, pairing, and signal strength, the unsung hero of this year’s event was battery efficiency. 2019, it seems, is the year of juice. From true wireless in-ears with nearly double the 5-hour maximums touted by previous generations to noise-canceling over-ears with 30-plus hours of playback, you’ll be searching for that charging cable a lot less in the near future. That also means there will soon be very few reasons to lament your missing headphone jack at all.
IT ALL STARTS WITH SONY
If you want to mess with the best, you need the specs to match.
With the release of its flagship WH-1000xM2 in late 2017, Sony set that battery life bar for flagship noise-canceling over-ears at a previously unheard of 30 hours of playback with active noise canceling engaged. The best major competitor in terms of technology, The Bose QC 35 II, offered just 20, while many others fell short of even that number. Offering all the bells and whistles of every major competitor at the time — including excellent noise-canceling tech, a great fit, and support for high-resolution codecs like aptX HD, the 1000xM2’s monstrous battery life was the perfect cherry on top, making them easily the best wireless headphones we’d ever tested upon release. (Sony has since updated the model with the improved WH-1000xM3, our current favorites.)
MAKING TRUE WIRELESS WORTHWHILE
So, what’s the deal with these bulging battery numbers? Have batteries just suddenly gotten better?
Actually, as we alluded to above, a big part of this evolutionary leap can be attributed to battery efficiency, which comes thanks in part to new Bluetooth chipsets like Qualcomm’s QC3026, among others. Aimed at true wireless headphones looking to outdo Apple’s incredibly popular AirPods, the QC3026 is part of a new generation of Bluetooth chips designed to vastly increase the current battery standard through ultra-efficient Bluetooth transmission. And while all headphones can benefit from increased efficiency, it’s especially important for the tiny batteries inside true wireless earphones.