The Sony WF-C510 doesn’t claim to be a high-end offering, and indeed doesn’t even have the specifications to match up. However the lack of even advanced Bluetooth codec support doesn’t hold it back, especially at the price. What the WF-C510 lacks in technical prowess, it makes up with good drivers and decent tuning.
The sound isn’t punchy, over-the-top, or any other descriptive word that I might be able to think of. Instead, it’s smooth, comfortable, and tuned to sound consistent and easily audible at pretty much any volume level. I didn’t find myself needing to go far beyond the 50 percent volume mark at home, and going up to about 70 percent was more than adequate outdoors.
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There was absolutely no listener fatigue, given the generally laid back approach to attack in the sound. This might sound like a weakness - and probably will be if you’re looking at something that goes harder and more forward - but the ‘chilled-out’ vibe suits the Sony WF-C510 really well. It’s the kind of true wireless headset you can just leave in your ears for hours at a time, listening to music distractedly while also doing whatever else you need to be doing.
Listening to All The People In The World by Safri Duo, the Sony WF-C510 did have enough drive in it with the volume bumped up, giving the catchy beats of the drums room to shine without quite attacking too hard. Fans of bass might miss the punch in these earphones, but the listening experience is geared around comfort, and this was evident across genres and tracks.
Battery life on the Sony WF-C510 is decent, largely because of the simple specifications and lack of bells and whistles such as ANC to consume more power. I managed to get around 10 hours of listening from the earphones, with the charging case topping up the batteries once over, for a total of 20 hours per charge cycle. It would have been nice if the case could do more than one top-up, but I do also appreciate its compact dimensions.