JBL Endurance Race 2 true wireless earbuds are built for intense workouts with an IP68 waterproof and dustproof rating and 48 hour battery life (ANC off). Their ergonomic wing enhancer with Twistlock™ technology ensures a secure comfortable fit. Powerful 6.8mm dynamic drivers deliver JBL Pure Bass sound while Active Noise Cancelling with Smart Ambient lets you stay aware of your surroundings. Sports Mode in the JBL app tailors sound settings to your workout and Relax Mode offers calming sounds post exercise. With four beamforming mics crystal clear calls are effortless and multi point Bluetooth® pairing ensures seamless device switching.