Sony WI-SP510 wireless in-ear sport headphones

The sweatproof WI-SP510 neckband earbuds play music wirelessly and offer up to 15 hours of music listening for long, grueling workouts Bass-heavy 'phones - in it for the long haul Few things get you hyped for a workout like hard-hitting bass. The Sony WI-SP510 sports earbuds are part of the EXTRA BASS series - a popular choice for those who enjoy bold, powerful low-end. Music plays wirelessly via Bluetooth 5.0, and these sweat-proof in-ears offer up to 15 hours of battery life. That should be enough listening time for marathoners in training - and the rest of us, too. Sony uses a neckband so you get a little more stability while you move. This allows your head to move around more freely. The lightweight earbuds seem like they are hardly there at all. That is, until you hear the deep, punchy thump from the 12mm dynamic drivers. Comfortable "stay-put" fit I've learned that in-ear sports headphones are only as good as their fit. You simply can't get a good workout in if you are constantly adjusting your earbuds. Sony has included four sizes of silicone ear tips to help you get a comfortable, secure fit. And there are two sizes of winged "arc supporters" that help anchor the earbuds into place.