Sport earbuds are commonly sold as sweat- or water-resistant. In the provided data, ratings range from IPX4 up to IP54 on some models.
Many sport earbuds include active noise cancelling (ANC) and a Transparency mode. Some models also offer adaptive or personalized audio and conversation/voice-isolation features.
Many sport earbuds support fast-charge: a brief 5-minute charge can provide useful playback time — roughly 1 hour on some models and up to about 90 minutes on others, per the data.
Some sport earbuds include built-in heart-rate sensors that measure pulse in real time and report heart rate and calorie data for workouts. These readings can be shared with compatible apps, and monitoring can usually be turned off in the device or app settings.
Many sport earbuds include built-in microphones, hands-free voice-assistant support, and on-device controls for calls and playback. Control implementations vary from physical buttons and volume rockers to touch or press controls, and many models also offer automatic pairing.